Estimated delivery September 30, 2026 - October 2, 2026
30-day Returns
Market & Price History
Prices Captured Sep 25, 2026
Condition
Value
Source
Trend
Price Details
$1.63
Guide Estimate
0%
Based on Aggregated Price Guide
Estimate: $1.63, based on Guide Estimate.
Source date not available
Guide Estimate: $1.63. Evidence date not available.
Completed Sales: $1.25. Evidence date: Aug 1, 2026.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.63 to $1.63 across 2 capture days. Change between Sep 6, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$1.25
Completed Sales
Based on Sold Comps (RAW) · 3 observations
Estimate: $1.25, based on Completed Sales.
Source date not available
Completed Sales: $1.25. Evidence date: Aug 1, 2026.
Supported by the available observations, but not a guaranteed sale price.
$1.63
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price Guide
Estimate: $1.63, based on Guide Estimate.
Source date not available
Guide Estimate: $1.63. Evidence date not available.
Completed Sales: $1.25. Evidence date: Aug 1, 2026.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.63 to $1.63 across 2 capture days. Change between Sep 6, 2026 and Sep 25, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$1.25
Source
Completed Sales
Trend
Price Details
Based on Sold Comps (RAW) · 3 observations
Estimate: $1.25, based on Completed Sales.
Source date not available
Completed Sales: $1.25. Evidence date: Aug 1, 2026.
Supported by the available observations, but not a guaranteed sale price.
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 Keith Hernandez #639 baseball card stands as a definitive piece of vintage sports memorabilia for enthusiasts of the New York Mets. Released during a pivotal era for the franchise, this card from the Fleer brand captures the essence of late-80s baseball collecting. Keith Hernandez, a cornerstone of the Mets lineup, is featured prominently on card number 639, offering collectors a tangible connection to the team's history during this period. Fleer revolutionized the trading card industry in the late 1980s with its bold design and high-quality production values. The 1988 set remains highly regarded by collectors for its distinct aesthetic and comprehensive coverage of Major League Baseball players. This release highlights the vibrant visual style that made Fleer cards sought after by both casual fans and serious investors. The card's design reflects the branding and artistic trends of the time, making it a nostalgic yet valuable addition to any baseball card collection. For collectors focused on the New York Mets, the 1988 Fleer Keith Hernandez #639 offers a unique opportunity to own a piece of the team's legacy. Whether you are building a complete set of 1988 Fleer cards or focusing on specific player subsets, this card provides essential value. The product's enduring appeal lies in its ability to evoke the excitement of the era while serving as a high-quality artifact of baseball history. The combination of the Fleer brand's reputation, the New York Mets' storied past, and Keith Hernandez's impact on the field makes this card a standout choice for those who appreciate the depth and variety of vintage baseball trading cards.
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.
Estimated delivery September 30, 2026 - October 2, 2026
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 Keith Hernandez card represents a baseline entry point for collectors focusing on the New York Mets or Hernandez's tenure with the franchise, trading at a modest price tier relative to his more prominent rookie issues. The current market positioning suggests it is accessible to casual fans, though the low number of active listings indicates a thin market where liquidity may be limited. As a standard base card from a mid-career snapshot, it lacks the premium valuation associated with his early career achievements or rare parallels.
Rarity Breakdown
The card is identified as having no special attributes, meaning it is a standard base release within the 1988 Fleer set rather than a short-print, parallel, or serial-numbered variant. This lack of distinct scarcity mechanics implies that supply is determined primarily by the original print run of the base set, which is generally high for mainstream brands of this era. Consequently, the card does not benefit from the supply constraints typically driven by serial numbering or limited edition status.
Investment Outlook
While the card captures a specific era of the New York Mets, its status as a non-rookie, base card limits its potential for significant appreciation compared to Hernandez's 1976 Topps rookie issue. Collector demand is likely driven by nostalgia for the 1980s Mets rather than speculative growth, making it a stable but low-yield holding for portfolio diversification. Investors should view this as a complementary piece for completing a set rather than a primary asset for capital gains.
