Boxer who simultaneously held the featherweight, welterweight and lightweight championships in 1938. Vintage fountain pen signature, “Salt Lake City, Henry Armstrong,” on an off-white 5 x 3 page, dated October 11, 1944. In fine condition, with collector’s typed notations to bottom and side, punch holes to left edge and unobtrusive mounting remnants to two edges. COA Steve Grad/PSA/DNA and R&R COA.