The 1989 Topps Mike Flanagan #139 card features the veteran pitcher during his tenure with the Toronto Blue Jays, representing a staple of 1980s baseball memorabilia.
Guide Estimate: $0.99. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $0.99 to $0.99 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.
$34.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $34.00, based on Guide Estimate.
Source date not available
Guide Estimate: $34.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $34.00 to $34.00 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.
$16.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $16.00, based on Guide Estimate.
Source date not available
Guide Estimate: $16.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $16.00 to $16.00 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.
$26.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $26.00, based on Guide Estimate.
Source date not available
Guide Estimate: $26.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $26.00 to $26.00 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.
$16.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $16.00, based on Guide Estimate.
Source date not available
Guide Estimate: $16.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $16.00 to $16.00 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.
$0.99
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price Guide
Estimate: $0.99, based on Guide Estimate.
Source date not available
Guide Estimate: $0.99. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $0.99 to $0.99 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.
$34.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $34.00, based on Guide Estimate.
Source date not available
Guide Estimate: $34.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $34.00 to $34.00 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.
$16.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $16.00, based on Guide Estimate.
Source date not available
Guide Estimate: $16.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $16.00 to $16.00 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.
$26.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $26.00, based on Guide Estimate.
Source date not available
Guide Estimate: $26.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $26.00 to $26.00 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.
$16.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $16.00, based on Guide Estimate.
Source date not available
Guide Estimate: $16.00. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $16.00 to $16.00 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.
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 Flanagan represented a significant presence on the mound for the Toronto Blue Jays during the late 1980s, and his appearance on the 1989 Topps baseball card set captures a specific moment in franchise history. As card number 139 in the standard Topps release, this product is recognized by collectors who value the consistency and iconic design of the era. The card serves as a tangible link to the competitive years when the Blue Jays were building toward their eventual championship success, making it a relevant piece for those tracking team evolution. Collecting 1989 Topps baseball cards offers a distinct aesthetic that defines the decade. For investors and hobbyists alike, this card number is a standard component for those looking to complete the base set or focus on specific teams. The 1989 release remains one of the most widely collected baseball card series, providing a reliable entry point for new enthusiasts and a consistent reference for seasoned catalogers. Whether you are building a collection focused on the Toronto Blue Jays or seeking to round out a broader baseball portfolio, the 1989 Topps Mike Flanagan #139 card holds a place in the hobby's landscape. The enduring popularity of Topps products from this period ensures that cards like this one remain a staple in discussions about 1980s baseball culture and the growth of the trading card market.
Last Listing Activity
9/19/26
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Product Specs
Card Details
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
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SuperCatch Expert Analysis
Market Value Insight
This 1989 Topps Mike Flanagan card represents a standard base-set entry with minimal premium, currently trading at a low price point relative to his broader collection. While Flanagan holds significance as a key pitcher for the Toronto Blue Jays during their early competitive years, this specific unvarnished issue lacks the condition scarcity or special finish required to command a higher tier. It sits comfortably in the lower end of the market, reflecting its status as a common, mass-produced item from a high-print run era.
Rarity Breakdown
The card is a standard base issue with no noted special attributes, meaning it carries no serial numbering, short-print designation, or parallel variety to constrain supply. Consequently, the available supply is effectively unlimited within the context of collector inventory, as these were produced in large quantities for the 1989 Topps set. Without any unique scarcity mechanics, the item relies entirely on general availability rather than limited edition status.
Investment Outlook
As a non-rookie card from a major manufacturer, this item does not benefit from rookie-card premium mechanics or set-defining positioning that typically drive collector demand. The lack of special attributes or team-specific highlights beyond standard play suggests steady but low-volume interest rather than speculative growth. Investors should view this as a low-risk acquisition for completing base sets rather than an asset with significant appreciation potential.
