Marlin mod.60, also know as the Glenfield mod.60 sold by Montgomery Wards.
In never owned a mod.60, but I do own a Marlin mod.99 M1 .22 cal. a Marlin mod.985 .22 caland a Springfield mod. 187.22 cal....the Marlinmod. 99 and the mod. 985 have never jammed on me.

The Springfield mod.187 feeds straight up and in, no ramp feed!