What year was the 1990 Upper Deck Mark Portugal card released?

The card was released in 1990 as part of the inaugural Upper Deck baseball set, which was the first major trading card product from the Upper Deck company.

Who is Mark Portugal and which team did he play for?

Mark Portugal is a former professional baseball pitcher who played in Major League Baseball, notably for the Houston Astros during the late 1980s and early 1990s.

Why is the 1990 Upper Deck set important to collectors?

The 1990 Upper Deck set is historically significant because it was the first major release from the Upper Deck brand, introducing high-quality packaging and printing standards that changed the industry.

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1990 Upper Deck Mark Portugal #502 baseball trading card front — Mark Portugal 1990 Upper Deck #502 - Baseball Trading Card

About This Card

Explore the 1990 Upper Deck Mark Portugal #502 baseball card, a notable entry from the Houston Astros player's career in the inaugural year of the Upper Deck brand.

Mark Portugal

Name: 1990 Upper Deck Low Number Mark Portugal #502
Brand: Upper Deck
SKU: sports_card_01KKVCYA7B00P2C8G7GJFQVGGB

1990 • Upper Deck • Low Number

Major League Baseball • Houston Astros

1990 Upper Deck Low Number Major League Baseball Houston Astros Near Mint

Best Available Offer

$1.99

1 available

Raw/Ungraded Market: $1.10

Stale · as of 8/13/2026

Based on Aggregated Price Guide · 1 sale sampledLast Updated August 13, 2026 at 7:03 PM

Condition

Near Mint

Card Number

502

Primary Seller

SuperCatch

New

Shipping Calculated at Checkout

30-day returns

Price History

Description

The 1990 Upper Deck Mark Portugal #502 represents a significant piece of baseball trading card history, marking the debut of the Upper Deck brand. As the first major manufacturer to introduce high-quality, plastic-sealed packs, Upper Deck set a new standard for the industry, and this card stands as a testament to that pioneering era. Collectors often seek out cards from this release due to its historical importance in the evolution of sports memorabilia. Mark Portugal, who played for the Houston Astros, is featured on card number 502 in this base set. For investors and hobbyists alike, cards from this inaugural set carry a unique charm, reflecting the excitement of a new chapter in the collecting world. This card is part of the broader 1990 Upper Deck collection, which includes players from various teams across Major League Baseball. The set's layout and card stock quality were considered premium for its time, making it a favorite among those who appreciate the tangible history of the sport. Whether you are building a collection focused on the Houston Astros, the 1990 MLB season, or the Upper Deck brand itself, this card offers a direct connection to that pivotal year. By focusing on the integrity and identity of each product, we help maintain the value and interest in these historical pieces. The 1990 Upper Deck Mark Portugal #502 remains a recognizable and respected item for those who value the origins of modern card production.

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