Signed Card from Arthur Jack Johnson as Former Heavyweight Champion of the World, card size is 4-5/8" x 4". These items are part of a "Celebrity Collection", which came together during a 9-month period in 1946 when the owner, Arthur Frank, was hospitalized with Polio. During this time, he and his father wrote for many autographs from the celebrities of the time. The collection came to include radio, TV, and movie celebrities as well as some athletic and political figures.