1970 O-Pee-Chee OPC #231 Luis Tiant Signed MLB Baseball Card KSA Graded Auto 91970 O Pee Chee #231 Luis Tiant baseball card, hard signed in blue ballpoint pen by Tiant Slabbed and authenticated by KSA. Autograph has been graded a 9. Card itself is notably off centre with some cornerwear as well as some light foxing visible on the back. Very light crease is visible only from the back on the top right corner (the bottom left corner from the front, but is not visible from the front and autograph is unaffected). Luis Tiant was a