Bold ballpoint signature, “Best wishes, Martin Luther King, Jr,” on an off-white 5 x 3 card dated in another hand March 22, 1961. In very good condition, with a block of toning from prior display, and scattered spotting and staining. The signature is, nonetheless, dark, clear, and well contrasted. Auction LOA John Reznikoff/PSA/DNA and R&R COA.