Clarke Hinkle Autograph Certified by PSA-DNA. Lot 205. Clarke Hinkle Autograph Certified by PSA-DNA. The signature is an unimprovable 10 on a lined index card. Hinkle starred at fullback and linebacker for the Packers. HoF 1964; died 1988. Authenticated also by Kevin Keating. Winning Bid $40. Back to List Winning Bid $40 Back to List