The 1988 Topps Traded Mike Schooler #105T represents a specific chapter in Seattle Mariners history. This catalog page groups all available copies of this vintage baseball card for collectors.
Guide Estimate: $1.42. Evidence date not available.
Asking Prices: $1.39. Evidence date: Sep 25, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $1.39, 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 $1.41 to $1.42 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0.7%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$22.78
Guide Estimate
-0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $22.78, based on Guide Estimate.
Source date not available
Guide Estimate: $22.78. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $22.78 to $22.79 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: -0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$25.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $25.00, based on Guide Estimate.
Source date not available
Guide Estimate: $25.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $25.00 to $25.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$116.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $116.00, based on Guide Estimate.
Source date not available
Guide Estimate: $116.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $116.00 to $116.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$54.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $54.00, based on Guide Estimate.
Source date not available
Guide Estimate: $54.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $54.00 to $54.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$89.60
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $89.60, based on Guide Estimate.
Source date not available
Guide Estimate: $89.60. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $89.60 to $89.60 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$54.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $54.00, based on Guide Estimate.
Source date not available
Guide Estimate: $54.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $54.00 to $54.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$1.42
Source
Guide Estimate
Trend
+0.7%
Price Details
Based on Aggregated Price Guide
Estimate: $1.42, based on Guide Estimate.
Source date not available
Guide Estimate: $1.42. Evidence date not available.
Asking Prices: $1.39. Evidence date: Sep 25, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $1.39, 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 $1.41 to $1.42 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0.7%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$22.78
Source
Guide Estimate
Trend
-0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $22.78, based on Guide Estimate.
Source date not available
Guide Estimate: $22.78. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $22.78 to $22.79 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: -0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$25.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $25.00, based on Guide Estimate.
Source date not available
Guide Estimate: $25.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $25.00 to $25.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$116.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $116.00, based on Guide Estimate.
Source date not available
Guide Estimate: $116.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $116.00 to $116.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$54.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $54.00, based on Guide Estimate.
Source date not available
Guide Estimate: $54.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $54.00 to $54.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$89.60
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $89.60, based on Guide Estimate.
Source date not available
Guide Estimate: $89.60. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $89.60 to $89.60 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$54.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $54.00, based on Guide Estimate.
Source date not available
Guide Estimate: $54.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $54.00 to $54.00 across 2 capture days. Change between Sep 7, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
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.
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
Mike Schooler, #105T in this Traded subset, represents the Seattle Mariners roster during a period of active roster turnover. Collectors often target Traded cards to complete the broader 1988 Topps base set, as these issues provide essential coverage for players who were not featured in the initial print run. The #105T card number identifies this issue within the Traded release, distinguishing it from the standard base card that may have appeared earlier in the year. Whether you are building a comprehensive collection of Mike Schooler’s career or seeking to fill a gap in a 1988 Topps complete set, this card serves as a tangible link to that era. The enduring appeal of 1980s baseball cards lies in their historical documentation and the nostalgia they evoke for fans of the game. As the market for vintage sports memorabilia continues to evolve, cards like the Mike Schooler #105T remain significant pieces for those interested in the history of the Seattle Mariners and the 1988 season.
Last Listing Activity
9/17/26
Seller Action
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Product Specs
Card Details
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
See how many public collections currently include this card.
0 collectors have this card
SuperCatch Expert Analysis
Market Value Insight
This 1988 Topps Traded card represents a foundational entry into the secondary market for Mike Schooler, reflecting his role as a reserve player during his tenure with the Seattle Mariners. As a standard base card from a high-volume production era, it trades at a modest price point relative to key rookie or star players from the same season. The current listing availability suggests a liquid but low-demand segment of the market, typical for non-premium cards from the late 1980s.
Rarity Breakdown
The card lacks any special scarcity attributes such as serial numbering, short printing, or parallel finishes, meaning it exists in a large, unrestricted print run. Without unique production constraints, the supply is determined solely by the original mass production numbers of the 1988 Topps Traded set. This standard classification places it in the most common tier of collectibles, where availability is high and individual unit differentiation is minimal.
Investment Outlook
As a non-rookie card from a major brand's traded subset, this item does not carry the rookie-card premium that typically drives significant appreciation in the baseball card market. Collector interest is likely limited to those completing specific team or player sets rather than broad speculative demand. The outlook suggests stable, low-volatility holding value rather than growth potential, driven by nostalgia for the era rather than player career achievements.
