Extremely attractive signature of Frank Shellenback who pitched briefly with the Chicago White Sox in 1919 before beginning a lengthy career in the Pacific Coast League that would see him set the all-time record for career victories during which he would eclipse 20 wins five times. The signature is applied diagonally on the card which exhibits some light toning and minor wear. Authenticated by James Spence Authentication and encapsulated by SGC when those two companies worked in joint partnership on autograph authentication and encapsulation.