This Marlin manufactured late variation cartridge stop is for the model 39A lever action rifle in 22 rimfire caliber and is in very good condition exhibiting a grayish brown patina 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 39A: (1951) H14371 & H24038