1941 Uncle Sam National Defence Trading Cards x6 R157 Gum Inc Vintage WWIILot of six 1941 vintage Uncle Sam National Defence trading cards manufactured by Gum Inc. featuring scenes from the four branches of the United States military during World War II The 1941 Uncle Sam Home Defense card sets are actually two subsets consisting of a total of 144 cards. This lot features 6 cards from the Uncle Sam subset (R157). The 6 cards in this lot are card numbers #23 "Target Practice with the Turret Gun", #37 "Can You Take It?", #38