Curtis S-57 | Dominion UO7RK | Ilco O1007RK, 01007RK, RK | Jet 6275RK | JMA SAR-85D | Silca SAR30 | Original 6275RK | Orion O1007RK | Taylor 043RK

6 Pin. RK Section. Most original Sargent keys, along with some aftermarket blanks, have a small RK stamped on the head of the key.

Invest In America: Made in U.S.A.