1889 Arbuckle Coffee Sports & Pastimes K4 UNITED STATES (PSA 1.5 FR) Baseball
This is the "key card" for the 1893 Arbuckle Coffee "History of the Sports and Pastimes of All Nations".
The designation "K4" was given this issue in the American Card catalog, which categorized trading cards for the first time in 1939. The "K" prefix denotes "Coffee Inserts".
