The 1991 Upper Deck Baseball card set is considered by many collectors to be the golden era of baseball cards. This was the year that the Upper Deck brand took over the hobby and became the premier sports card manufacturer. Within every great set there are sometimes imperfections, and the 1991 Upper Deck set contained several interesting error variations that are highly sought after by collectors today.
One of the major errors involved Steve Finley’s rookie card. On the standard version of the card, Finley is pictured in an Astros uniform even though he had been traded to the Orioles prior to the 1991 season. Only a small number of cards actually show him wearing an Orioles uniform. These Orioles variation cards are extremely scarce and can sell for thousands of dollars in near mint condition.
Another noteworthy rookie card error involves pitcher Bill Swift. On most versions of his card, the word “Swift” is misspelled as “Swfit”. Only a handful were printed correctly. These correct spelling variations have become some of the most valuable and iconic error cards from the entire set.
In addition to name errors, several cards contained photo swaps as well. The most famous example is the Jeff Bagwell card. Most collectors are familiar with the standard version that shows Bagwell hitting. A small subset mistakenly used Bagwell’s action pitching photo instead of hitting. These “pitching pose”variations command huge prices in the secondary market.
Another photo swap occurred on the Brian Williams card. Normally he is depicted batting left-handed. But a small number of prints erroneously put Ken Griffey Jr.’s right-handed batting photo in its place. Finding one of these Griffey swapped Williams cards in your collection would be a tremendous surprise and asset.
Occasionally entire player names were missing from cards as well. On the standard Jack McDowell issue, the printing plates somehow left off the last three letters of his surname, resulting in jack “mcdowe” variations. The same thing happened to John Habyan, whose final “n” was omitted, creating “John Habya” errors. Both of these typographical omissions are quite rare.
Inexplicably, some cards even contained photo swaps with other sports. There are a handful of documented cases where Roberto Alomar’s baseball action shot was replaced with a football action shot featuring Denver Broncos player Steve Atwater. The same thing occurred with pitcher Mark Gardner, who has a short print variation that places a photo of another Gardner who played Canadian football. Discovering these would shock any collector.
Other strange errors saw stats, uniforms, and even entire player identities scrambled. For example, there are a tiny number of Mark McGwire cards that list his stats as fellow first baseman Greg Olson’s. A small batch of Chris James cards mistakenly dressed him in a Yankees uniform despite him never playing for them. And it’s believed that somewhere in circulation is a multi-player error card merging the photos of pitchers Bob McClure and Jack Morris onto a single issue.
The scale and randomness of the issues demonstrate how even the massively successful 1991 Upper Deck release wasn’t immune from glitches. While errors often lower the numeric grade of a card, they paradoxically drive up the premium price tags for advanced collectors seeking the unplanned-for variations. Assembling a complete 1991 UD set, errors and all, stands as one of the great quests for those immersed in the origin era of modern sports cards. The unknown number of mistakes lurking within that release continue to surface decades later, captivating the imaginations of those who appreciate the imperfections within perfection.
