This Marlin manufactured late variation hammer spring (mainspring) adjusting plate is for the later model 39A lever action rifle in 22 rimfire caliber and is in very good condition with light wear. (file photos)
Note: Marlin model 39A lever action rimfire rifles in 22 caliber with the following years of manufacture and serial numbers have beeen observed with this part:
Marked 39-A:
Marked 39A: (1951) H24038
