In 1934, the Canadian Chewing Gum Company produced the 50-card set of "Tarzan and the Crystal Vault of Isis" (V-256). A rare set, these cards differ from the set produced in the United States by including both the English and French text on the reverse. The artwork is the same as the US set. Condition of cards vary from FR-GD (40%) to VG or better (50%) with a handful lesser. Missing #s 2, 3, 4, 14, 15, 42, and 48 for completion.