Matrix / Runout: 2222 (Mar-2222-A) (Side A Label [2222 is placed above parenthetical]) Matrix / Runout: 2222 (Mar-2222-B) (Side B Label [2222 is placed above parenthetical]) Matrix / Runout: MARLIN 2222- A I I I RL (Side A Etched) Matrix / Runout: MARLIN 2222- B I I I RL (Side B Etched) Matrix / Runout: MASTERDISK (Side A Stamped) Matrix / Runout: MASTERDISK (Side B Stamped) Matrix / Runout: MARLIN 2222-A-AM RL (Side A Etched, Variant 2) Matrix / Runout: MARLIN 2222-B-AM RL (Side B Etched, Variant 2)