Marlin Model 20
The Marlin No. 20 is a bolt-action.22 caliber rifle with an octagonal barrel and tubular magazine, bearing patents of August 12, 1890 through November 29, 1904, produced by the Marlin Firearms Co. of New Haven, Connecticut.
It is not the same as the Glenfield Model 20. The Model 20 is a bolt-action rifle that fires primarily the.22LR rimfire cartridge, but also the.22 short, and the obsolete.22 long. Produced by the Marlin Firearms Company of North Haven, Connecticut, it was in production from 1960 to 1966.