Many collectors are familiar, of course, with the thousands of arcade cards produced by Chicago's Exhibit Supply Company (ESCO) from the early Twenties through the mid Sixties but their Canadian issues are a surprise to many.  A really nice surprise as it turns out.  In 1953 ESCO came out with a two 32 card series that featured a mix of Major League players in one, followed by a hybrid that that primarily showcased players from the Brooklyn Dodgers top farm team, the Montreal Royals, with a few MLB'ers tacked on at the end. Each of the Canadian versions of the 32 first series cards can be found with two different colored tints (green or reddish-purple), with the card number displayed in a small diamond near the lower right corner, above a Made in U.S.A. manufacturing notation; some also state "An Exhibit Card".  These cards are slightly smaller than the ESCO US issues, blank backed with a rougher cardboard than is seen in the states and are definitely an order of magnitude tougher.

Strong corners for the grade define this PSA 4 '53 Canadian Exhibit purple (red) tint of Brooklyn Dodgers great Roy Campanella, which also has a nice, clear image.  A slight off cut top-to-bottom, a possible stray line off to the right and a small, bright spot of unknown origin on the reverse bring it down technically but this is one nice looking Campy!