The 1990 Upper Deck Jeffrey Leonard #331 baseball card captures the Seattle Mariners player during a pivotal era of the franchise. This catalog entry represents a significant piece for collectors of vintage Upper Deck issues.
1990 • Upper Deck • Low Number
Major League Baseball • Seattle Mariners
Near Mint
331
New
Shipping Calculated at Checkout
This seller is away until 10/19/2026 — orders are still accepted and ship after they return.30-day Returns| Condition | Value | Source | Trend | Price Details |
|---|---|---|---|---|
$1.15 | Guide Estimate | |||
$1.25As of 4/14/2026 | Evidence Type Unavailable | |||
Raw / Ungraded
PriceCharting Price Guide · Guide Estimate evidence · captured Oct 10, 2026
History is building. At least two days of matching observations are needed to show a trend.
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.The 1990 Upper Deck Jeffrey Leonard #331 baseball card stands as a notable entry in the history of modern trading card manufacturing. Released during the inaugural year of Upper Deck, this product introduced a groundbreaking glossy finish that revolutionized the visual aesthetic of the hobby. For collectors focusing on the Seattle Mariners franchise, this card serves as an essential component for those building a comprehensive team set. The subject, Jeffrey Leonard, is featured in this card number, offering a tangible connection to the team's roster during the early 1990s. Collecting vintage sports cards from this era requires attention to detail and an appreciation for the manufacturing innovations of the time. Whether you are looking to complete a personal collection or acquire a piece of baseball history, this card represents a fundamental building block for enthusiasts of the sport. The enduring appeal of vintage baseball cards lies in their ability to preserve the memory of players and teams from decades past. This product provides access to a piece of that legacy, allowing collectors to own a physical artifact from the golden age of card collecting. The identity of the player and the team affiliation remain the primary drivers for interest in this release, making it a relevant item for those who follow the history of the MLB. For those who value the craftsmanship of early 1990s card design, this card offers a direct link to the origins of the Upper Deck brand.
14 hours ago
We'll pre-fill the product details from this catalog entry, so your listing lands on this exact page. Just add photos of your copy, pick its condition, and set your price.
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Production details and format-specific attributes.
Material
Card Stock
Language
English
Compare prices, grades, photos, and shipping from approved sellers.
New
Near Mint
See how many public collections currently include this card.
0 collectors have this card
This 1990 Upper Deck card represents an entry-level tier for Jeffrey Leonard collectors, reflecting his status as a solid but not elite franchise figure from that era. The current market positioning suggests it trades at a modest premium over common base parallels, driven by the nostalgia of the early Upper Deck brand rather than significant player hierarchy. Condition sensitivity is likely minimal for this specific price tier, making it accessible for bulk acquisition rather than high-end grading investment.
The 'Low Number' designation in the set name implies a supply constraint mechanism, though without specific serial number data, the exact scarcity level remains undefined. As a standard issue from a major 1990 release, it lacks the extreme scarcity of one-of-ones or short-printed variants, relying instead on the general collectibility of the series. The absence of noted special attributes indicates it is a standard print, meaning its rarity is derived from the overall set size and survival rate rather than unique manufacturing limits.
Investment potential is tied to the broader demand for 1990 Upper Deck baseball cards, which benefits from the brand's historical significance in the hobby. Collectors focused on the Seattle Mariners' history or Leonard's tenure may seek this out as a foundational piece, providing steady but modest demand. The low number series aspect adds a layer of appeal for subset collectors, potentially supporting value retention better than standard base cards in the same set.
