- Autopen - A machine that accurately duplicates a signature
- B/W - Black and white
- C - Color
- CIC - Custom index card
- COA - Certificate of authenticity
- FOE - Forwarding order expired
- HOF - Hall of fame
- IC - Index card
- IP - Autograph obtained in person
- PC - Postcard
- PP - Preprinted photo and signature
- RTS - Return to sender
- SASE - Self addressed stamped envelope
- TTM - Autograph obtained through the mail
