8 1941 R336 Play Ball Cards Including #21 Keller, 1 High Number. Lot 25. 8 1941 R336 Play Ball Cards Including #21 Keller, 1 High Number. Here is a clean group from this very popular set. Ex-m #31, 35. Ex+ #9, 29, 53. Ex #21 Keller. Vg #5. G-vg #27. Minimum Bid $200. Back to List Minimum Bid $200 Back to List