The 1989 Topps Mike Harkey #742 baseball card captures a specific moment in vintage baseball history, featuring the Chicago Cubs pitcher in one of the era's most iconic designs.
Estimated delivery October 1, 2026 - October 3, 2026
30-day Returns
Market & Price History
Prices Captured Sep 21, 2026
Condition
Value
Source
Trend
Price Details
$1.35
Guide Estimate
0%
Based on Aggregated Price Guide
Estimate: $1.35, based on Guide Estimate.
Source date not available
Guide Estimate: $1.35. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.35 to $1.35 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$9.58
Guide Estimate
+0.1%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $9.58, based on Guide Estimate.
Source date not available
Guide Estimate: $9.58. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $9.57 to $9.58 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0.1%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$20.41
Guide Estimate
+0.2%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $20.41, based on Guide Estimate.
Source date not available
Guide Estimate: $20.41. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $20.37 to $20.41 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0.2%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$37.46
Guide Estimate
+0.2%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $37.46, based on Guide Estimate.
Source date not available
Guide Estimate: $37.46. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $37.39 to $37.46 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0.2%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$54.00
Guide Estimate
-6.9%
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 $58.00 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -6.9%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$25.00
Guide Estimate
-7.4%
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 $27.00 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -7.4%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$41.31
Guide Estimate
-7.6%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $41.31, based on Guide Estimate.
Source date not available
Guide Estimate: $41.31. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $41.31 to $44.70 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -7.6%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$25.00
Guide Estimate
-7.4%
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 $27.00 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -7.4%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$1.35
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price Guide
Estimate: $1.35, based on Guide Estimate.
Source date not available
Guide Estimate: $1.35. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.35 to $1.35 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$9.58
Source
Guide Estimate
Trend
+0.1%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $9.58, based on Guide Estimate.
Source date not available
Guide Estimate: $9.58. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $9.57 to $9.58 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0.1%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$20.41
Source
Guide Estimate
Trend
+0.2%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $20.41, based on Guide Estimate.
Source date not available
Guide Estimate: $20.41. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $20.37 to $20.41 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0.2%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$37.46
Source
Guide Estimate
Trend
+0.2%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $37.46, based on Guide Estimate.
Source date not available
Guide Estimate: $37.46. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $37.39 to $37.46 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: 0.2%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$54.00
Source
Guide Estimate
Trend
-6.9%
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 $58.00 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -6.9%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$25.00
Source
Guide Estimate
Trend
-7.4%
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 $27.00 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -7.4%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$41.31
Source
Guide Estimate
Trend
-7.6%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $41.31, based on Guide Estimate.
Source date not available
Guide Estimate: $41.31. Evidence date not available.
Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $41.31 to $44.70 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -7.6%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$25.00
Source
Guide Estimate
Trend
-7.4%
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 $27.00 across 2 capture days. Change between Sep 4, 2026 and Sep 21, 2026: -7.4%. 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
The 1989 Topps Mike Harkey #742 baseball card represents a distinct era of sports memorabilia collecting. Released by Topps during the late 1980s, this card features Mike Harkey, who was associated with the Chicago Cubs. Collectors often seek out cards from this year due to the unique design elements and printing standards that defined Topps releases during that period. As a numbered card in the Topps base set, #742 serves as a tangible piece of baseball history. The card highlights Harkey's tenure with the Chicago Cubs, making it a relevant item for fans of the team and collectors of vintage baseball cards. For investors and hobbyists alike, vintage cards like the 1989 Topps Mike Harkey #742 offer a connection to the sport's past. Whether you are focusing on completing a set of 1989 Topps cards or looking for specific player cards from the Chicago Cubs, this product fits into a broader narrative of baseball card collecting. The card's identity as part of the 1989 Topps release ensures it remains a recognizable and sought-after piece within the hobby. By focusing on the product's identity and historical context, collectors can appreciate the card's place in the timeline of baseball trading cards. This approach ensures that each listing is evaluated based on its factual attributes, such as the manufacturer, year, player, and team, rather than transient market conditions.
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 October 1, 2026 - October 3, 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 1989 Topps Mike Harkey card represents a baseline entry point within the player's market, trading at a modest premium relative to raw, ungraded examples of the same base set. Its value is anchored by the historical significance of the 1989 Topps set, which remains a staple for collectors of Chicago Cubs memorabilia from that era. While the card lacks specialized grading or unique attributes, it maintains steady liquidity due to its accessibility and the enduring interest in Cubs roster history.
Rarity Breakdown
As a standard base card within a major production run, this item does not carry inherent scarcity mechanics such as serial numbering, parallel finishes, or short-print designations. The supply of this specific card is determined solely by the original mass-market print run of the 1989 Topps Baseball set, meaning availability is generally high compared to limited-edition releases. Consequently, its rarity is defined by its status as a common base card rather than any exclusive production constraints.
Investment Outlook
The card's value proposition is driven by its role as an affordable component for complete set builders or collectors focusing specifically on the 1989 Chicago Cubs roster. Demand is likely to remain consistent among niche collectors seeking foundational pieces of Harkey's career rather than speculative growth driven by player milestones. Long-term appreciation will depend on broader market trends for vintage baseball cards rather than unique attributes of this individual card.
