Marketplace

1 / 2

About This Card

This 1988 Fleer #378 card features Edgar Martinez of the Seattle Mariners, marking an early issue from a foundational year in the brand's history.

Edgar Martinez

Name: 1988 Fleer Edgar Martinez #378
Brand: Fleer
SKU: sports_card_01KKZ6443H007M28KFF4P6DW0W

1988 • Fleer

Major League Baseball • Seattle Mariners

1988 Fleer Major League Baseball Seattle Mariners PSA 8

Seller Offer

$14.99

1 available

Grade

PSA 8

Certification48259999

Population

398 at This Grade

3,140 graded higher

Card Number

378

Primary Seller

SuperCatch

New

Shipping Calculated at Checkout

30-day Returns

Market & Price History

Prices Captured Nov 13, 2026 Unless Another Date Is Shown

Condition	Value	Source	Trend
	$1.57	Guide Estimate	-7.6%
Based on Aggregated Price Guide Estimate: $1.57, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $1.57. Evidence date not available. Asking Prices: $1.35. Evidence date: Nov 13, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $2.13, among 13 offers with known shipping; tax excluded. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $1.50 to $1.77 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: -7.6%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$1.45Nov 6, 2026	Completed Sales	0%
Based on Sold Comps (RAW) · 3 observations Estimate: $1.45, based on Completed Sales. Source date not availableCaptured Nov 6, 2026 Completed Sales: $1.45. Evidence date: Sep 23, 2026. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $1.45 to $1.45 across 3 capture days. Change between Oct 23, 2026 and Nov 6, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 6, 2026
	$5.50	Guide Estimate	0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $5.50, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $5.50. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $5.50 to $5.50 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$14.50	Guide Estimate	0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $14.50, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $14.50. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $14.50 to $14.50 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$15.97	Guide Estimate	-9.3%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $15.97, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $15.97. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $15.42 to $17.61 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: -9.3%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$32.33	Guide Estimate	-0.3%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $32.33, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $32.33. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $32.33 to $32.42 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: -0.3%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$81.00	Guide Estimate	+15.7%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $81.00, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $81.00. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $70.00 to $81.00 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 15.7%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$32.50	Guide Estimate	0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $32.50, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $32.50. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $32.50 to $32.50 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$62.34	Guide Estimate	+16%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $62.34, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $62.34. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $53.74 to $62.34 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 16%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
	$45.00	Guide Estimate	+23.2%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales Estimate: $45.00, based on Guide Estimate. Source date not availableCaptured Nov 13, 2026 Guide Estimate: $45.00. Evidence date not available. Supported by the available observations, but not a guaranteed sale price. Over the last 30 days, stored prices ranged from $36.28 to $45.00 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 23.2%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026

$1.57
Source
Guide Estimate
Trend
-7.6%
Price Details
Based on Aggregated Price Guide
Estimate: $1.57, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $1.57. Evidence date not available.
Asking Prices: $1.35. Evidence date: Nov 13, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $2.13, among 13 offers with known shipping; tax excluded.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.50 to $1.77 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: -7.6%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$1.45Nov 6, 2026
Source
Completed Sales
Trend
0%
Price Details
Based on Sold Comps (RAW) · 3 observations
Estimate: $1.45, based on Completed Sales.
Source date not availableCaptured Nov 6, 2026
Completed Sales: $1.45. Evidence date: Sep 23, 2026.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.45 to $1.45 across 3 capture days. Change between Oct 23, 2026 and Nov 6, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 6, 2026
$5.50
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $5.50, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $5.50. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $5.50 to $5.50 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$14.50
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $14.50, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $14.50. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $14.50 to $14.50 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$15.97
Source
Guide Estimate
Trend
-9.3%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $15.97, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $15.97. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $15.42 to $17.61 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: -9.3%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$32.33
Source
Guide Estimate
Trend
-0.3%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $32.33, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $32.33. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $32.33 to $32.42 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: -0.3%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$81.00
Source
Guide Estimate
Trend
+15.7%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $81.00, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $81.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $70.00 to $81.00 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 15.7%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$32.50
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $32.50, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $32.50. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $32.50 to $32.50 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$62.34
Source
Guide Estimate
Trend
+16%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $62.34, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $62.34. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $53.74 to $62.34 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 16%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026
$45.00
Source
Guide Estimate
Trend
+23.2%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $45.00, based on Guide Estimate.
Source date not availableCaptured Nov 13, 2026
Guide Estimate: $45.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $36.28 to $45.00 across 4 capture days. Change between Oct 23, 2026 and Nov 13, 2026: 23.2%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 13, 2026

Below grade 10 the guide publishes one estimate across all graders, so these rows are not PSA, BGS, CGC or SGC prices, and a low slabbed grade can sit below a clean raw copy. Grade 10 is estimated per grader.

30-day Price History

Raw / Ungraded

PriceCharting Price Guide · Guide Estimate evidence · captured Nov 13, 2026

Each point is the last stored observation that day for this printing, condition, grader, autograph status and source. Gaps mean no observation; guide estimates and asking prices are not completed sales.

Product Overview

Description

The 1988 Fleer #378 card presents Edgar Martinez during his early tenure with the Seattle Mariners. As one of the earliest issues featuring Martinez in a Mariners uniform, this card holds significant interest for fans tracking his career trajectory within the organization. The Fleer brand was a dominant force in sports card manufacturing during the late 1980s, and this release captures the aesthetic and design standards of that specific era. Collectors often seek out this card as part of a complete 1988 Fleer base set, which remains a popular target for enthusiasts who appreciate the straightforward, clean design language characteristic of the period. The card identifies Martinez as a key figure for the Seattle Mariners, providing a tangible connection to the team's roster during a transformative time. For investors and hobbyists alike, items from this release represent a tangible piece of baseball history, bridging the gap between the player's debut era and his later accolades. Whether you are building a dedicated Mariners collection, focusing on Fleer releases from the 1980s, or looking for a specific card number to complete a chronological set, the 1988 Fleer Edgar Martinez #378 offers a distinct point of interest. The card serves as a foundational element for those cataloging the evolution of sports card design and player representation during the late eighties. It stands as a recognized component in the broader landscape of vintage baseball collecting, appealing to those who value the historical context of the Fleer brand and its impact on the hobby.

Last Listing Activity

4 days ago

Seller Action

Have one of these to sell?

We'll pre-fill the product details from this catalog entry, so your listing lands on this exact page. Just add photos of your copy, pick its condition, and set your price.

Product Specs

Card Details

The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.

Catalog Profile

The core identity of the card within the set.

Year

1988

Brand

Fleer

Card Number

#378

Featured Subject

The subject, team, league, and sport context tied to this card.

Featured

Edgar Martinez

Team

Seattle Mariners

League

Major League Baseball

Sport

Baseball

Print Details

Production details and format-specific attributes.

Material

Card Stock

Language

English

Available Offers

Available Offer for This Card (1)

Compare prices, grades, photos, and shipping from approved sellers.

Seller

SuperCatch

Verified Seller

Featured Offer

New

Grade

PSA 8

PSA Cert # 48259999

Seller Price

$14.99

Shipping Extra

Collector Ownership

Owned by Collectors

See how many public collections currently include this card.

0 collectors have this card

SuperCatch Expert Analysis

Market Value Insight

This 1988 Fleer card represents a foundational entry in Edgar Martinez's early career, capturing him during his initial season with the Seattle Mariners. While the current market price suggests a modest tier compared to his later marquee releases, the availability of graded copies indicates a distinct premium for preserved condition within this specific vintage set. It trades at a baseline level relative to his more sought-after rookie or signature cards, serving as an accessible entry point for collectors focusing on his early Mariners tenure.

Rarity Breakdown

As a standard base card from a mass-produced 1988 Fleer release, the inherent scarcity is low, relying primarily on physical preservation for value differentiation. The availability of graded copies highlights the importance of centering and surface quality, as high-grade examples are significantly harder to find than raw counterparts. There are no serial numbering or parallel attributes present to constrain supply, meaning rarity is driven entirely by the survivorship of high-quality examples from this era.

Investment Outlook

The card's value is anchored by its status as an early career piece rather than a rookie card, limiting its upside compared to his 1987 or 1988 Fleer Rookie issues. Demand is steady among Mariners history collectors and Fleer set builders, but the lack of unique scarcity features keeps it from commanding strong appreciation. It serves best as a portfolio filler for vintage baseball enthusiasts rather than a primary growth asset, with liquidity supported by the consistent availability of graded options.

AI-Generated Editorial Analysis

FAQ

Frequently Asked Questions

When was Edgar Martinez's first Fleer card released?

Edgar Martinez's first Fleer card was released in 1988, bearing the card number 378. This issue marks his initial appearance in the Fleer product line during his early years with the Seattle Mariners.

What team did Edgar Martinez play for on the 1988 Fleer #378 card?

On the 1988 Fleer #378 card, Edgar Martinez is depicted as a member of the Seattle Mariners. This reflects his professional affiliation during that specific season.

Is the 1988 Fleer set considered a valuable vintage collection?

The 1988 Fleer set is widely regarded as a significant vintage collection within the hobby. It is frequently targeted by collectors looking to complete base sets or those focusing on early career cards of prominent players from that era.