Definitely an old 140. Restore it! I do it as a retirement hobby. Nice elm stock like the 160 Pellgun variant one (1955-56) I found in my closet. Restomodded it myself. Stain, bluing and all. Even the screws got reblued. And the XP-Tuned gas valve from Archer Airguns for the QB78 fits and works great in it. It's supposed to be worth 70FPS more. And the Archer replacement valve, their copy of the Crosman redesign from 1963 gave me 660/11.76! So we're lookin' at a possible 730/14 when I get a new chrono to test it.