Carl Erskine is one of the most legendary TTM success stories in hobby history. We sent him a copy of his 1952 Topps card through my work and when he returned it (signed, of course) he personalized the return letter to me. My bosses were kind enough to let me keep the letter.
Erskine inscribed his number as well as the start and stop years of his career which was spent entirely with the Blue Crew. He boasts one of the prettiest signatures out there. It's the second TTM item from Carl to call my collection home.