This Marlin manufactured third variation rear sight assembly with the late variation .085" thick elevator is for the model 60 semi-auto rimfire rifle manufactured from mid 1984 through 1989 and is in very good condition with light wear. (file photo)
Note: Firearms with the following years of manufacture and serial numbers have been observed with this part:
1984: 16359195, 16362350 & 16426541
1985: 15320771
1986: 14431919, 14419097, 14441361, & 14357843
1988: 12335470 & 12444501
1989: 11174735