The 1928 W502 Game Backs cards are similar to the F50 ice cream/food issues as well as the E210 York Caramel set. The biggest difference, however, is found on the backs. Here's a closer look at the W502 set. W502 Game Backs Basics Classified as W502 by Jefferson Burdick in his American Card Catalog, these cards are believed to have been printed in 1928. They feature … [Read more...] about 1928 W502 Game Backs Cards Offered Interesting Twist