What Is an Exhibit Card?

An Exhibit card is a postcard-sized, thick cardboard photo card produced by the Exhibit Supply Company (later Exhibit Vending Corporation) of Chicago, sold one at a time from penny-arcade and amusement-park vending machines from the 1920s through 1966. A customer dropped in a coin, and the machine dispensed a single card -- there was no pack, no wax wrapper, and no box to open. That vending-machine distribution model, running for decades and covering baseball, football, boxing, wrestling, and non-sports subjects alike, is what separates an Exhibit card from every pack-issued or premium-issued set of the same era.

• Bigger and thicker than a pack card.At roughly 3-1/4" x 5-1/2", an Exhibit card is closer to a postcard than a standard trading card, printed on thick, photographic-style cardboard stock meant to survive being handled straight out of a coin machine.
• Sold one card at a time, forever, not one series at a time. Unlike a tobacco card packed into cigarettes or a Cracker Jack card tucked into a snack box, Exhibit cards were dispensed individually from a machine a buyer chose to feed again, which is why the same players' images were reprinted across many years with only the back text changing.
• The image often outlived the player's career.Because Exhibit Supply reused negatives across print runs spanning years or even decades, the same photo of a star player can turn up on cards with several different back styles, printed long after the photo was originally taken.

Because the same front image was reprinted for years, collectors date an Exhibit card primarily by its back, not its front:

• Blank backs are the earliest and most common style, running from the 1920s into the 1940s -- no text, no copyright line, nothing to date the card by except the front image and known print eras.
• “Salutation” backs(roughly 1947-1966) added a short greeting or note printed as if the player were writing to the buyer (“Hi Pal!” and similar), along with the Exhibit Supply Co. copyright line -- this is the era most often called the postcard-back period.
• Regional and subset variations exist, including the 1939-46 Salutation predecessor styles and later Wrigley-related premium tie-ins, so a precise year attribution usually depends on back-style reference guides rather than the image alone.

• Confirm the back style, not just the player. Because the same photo can appear across multiple back-style eras, a listing's price should match the specific back type, not just the player pictured -- an early blank-back example of a star player is typically worth more than a later reprint of the exact same image.
• Watch for trimming.Exhibit cards' larger, postcard-like size and thick stock made them a common target for trimming down corners or edges to disguise damage -- check measurements against a known-authentic example before paying a premium for “sharp corners.”
• Reprints and later reissues exist, including modern novelty reprints sold as souvenirs -- compare card stock thickness, back text, and any copyright line against reference images before assuming a card is an original-era issue. See How to Spot Fake and Reprint Sports Cards for the general tells.
• Price off sold comps for that exact back style and era, not a single price-guide number covering the whole multi-decade run. See How Much Are My Sports Cards Worth? for the method.

Confirm the exact card with Identify & Research — free-path first (on-device OCR, catalog match, and fingerprints). For the other major prewar formats sold outside a standard pack, see What Is a Tobacco Card? and What Is a Cracker Jack Card? For the local, sponsor-funded giveaway format from decades later that also skipped packs entirely, see What Is a Police/Fire Safety Set Card?, or open the full guides library.