The 1990-91 SkyBox Kelvin Upshaw #104 basketball card features the Golden State Warriors guard in the iconic SkyBox design of the early 90s NBA trading card era.
Kelvin Upshaw
1990-91 • Skybox
National Basketball Association • Golden State Warriors
Estimated delivery September 30, 2026 - October 2, 2026
30-day Returns
Market & Price History
Condition
Value
Source
Trend
Price Details
$1.40
Asking Prices
+41.4%
Based on eBay Active Listings · 22 observations
Estimate: $1.40, based on Asking Prices.
Guide Estimate: $0.99. Evidence date not available.
Asking Prices: $1.40. Evidence date: Sep 18, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $1.34, among 22 offers with known shipping; tax excluded.
Asking prices are unsold offers, not completed sales. Repeated observations do not establish additional buyer demand.Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $0.99 to $1.40 across 2 capture days. Change between Sep 2, 2026 and Sep 18, 2026: 41.4%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$20.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $20.00, based on Guide Estimate.
Source date not available
Guide Estimate: $20.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $20.00 to $20.00 across 2 capture days. Change between Sep 2, 2026 and Sep 18, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$22.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $22.00, based on Guide Estimate.
Source date not available
Guide Estimate: $22.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $22.00 to $22.00 across 2 capture days. Change between Sep 2, 2026 and Sep 18, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$1.40
Source
Asking Prices
Trend
+41.4%
Price Details
Based on eBay Active Listings · 22 observations
Estimate: $1.40, based on Asking Prices.
Guide Estimate: $0.99. Evidence date not available.
Asking Prices: $1.40. Evidence date: Sep 18, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $1.34, among 22 offers with known shipping; tax excluded.
Asking prices are unsold offers, not completed sales. Repeated observations do not establish additional buyer demand.Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $0.99 to $1.40 across 2 capture days. Change between Sep 2, 2026 and Sep 18, 2026: 41.4%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$20.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $20.00, based on Guide Estimate.
Source date not available
Guide Estimate: $20.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $20.00 to $20.00 across 2 capture days. Change between Sep 2, 2026 and Sep 18, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$22.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $22.00, based on Guide Estimate.
Source date not available
Guide Estimate: $22.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $22.00 to $22.00 across 2 capture days. Change between Sep 2, 2026 and Sep 18, 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
The 1990-91 SkyBox Kelvin Upshaw #104 basketball card stands as a distinct artifact from one of the most recognizable eras in sports card collecting. Released during a time when SkyBox revolutionized the industry with its oversized formats and glossy finishes, this card captures the visual identity of the early 1990s NBA market. Kelvin Upshaw, who played for the Golden State Warriors during this period, is featured prominently in this release, offering collectors a tangible connection to the team's roster from that specific season. Collectors often seek out SkyBox products from the 1990-91 set not just for the imagery, but for the cultural footprint the brand left on the hobby. The #104 card in this sequence is a standard base release, making it an accessible entry point for those looking to build a comprehensive collection of vintage basketball cards. For investors and hobbyists alike, the SkyBox brand remains synonymous with the boom years of the trading card market, and owning a piece of this lineage holds significant nostalgic value. The Golden State Warriors' history is rich with memorable players and moments, and Upshaw’s tenure adds a layer of depth to any set dedicated to the franchise. This card allows fans to preserve a fragment of that history, serving as a conversation piece for gatherings or a meaningful addition to a display case. Whether you are a dedicated Warriors supporter or a broader NBA historian, the 1990-91 SkyBox series offers a unique window into the past.
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
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0 collectors have this card
SuperCatch Expert Analysis
Market Value Insight
This 1990-91 Skybox Kelvin Upshaw card trades at a modest entry-level price point, reflecting its status as a standard issue from a major base set. While it holds historical significance as part of the iconic Skybox basketball line, the lack of special attributes or grading premiums keeps it in the lower tier of collectible value. It serves as an affordable option for completists seeking to fill gaps in Golden State Warriors or league-wide collections.
Rarity Breakdown
The card possesses no special scarcity attributes such as serial numbering, short-print designation, or parallel variations, meaning it exists as a common base card within the set. Its supply is determined solely by the original print run of the base Skybox basketball product, which was mass-produced for widespread retail distribution. Consequently, the supply is abundant, and no unique limiting factors constrain its availability.
Investment Outlook
As a non-rookie card from the early 1990s era, this item lacks the rookie-card premium mechanics that typically drive significant appreciation in basketball card markets. Collector demand is likely limited to niche completists focusing on the Skybox brand or specific team rosters from that period. Without grading or special features, its long-term value retention relies heavily on the general nostalgia for 1990s basketball products rather than individual player career milestones.
