This is a Remington Semi Auto...22...Roughly around 1948...My grandfather bought it new.......It shoots 22LR...22L....and 22Shorts.....it is a model 550-1.....Shoots like new...The ammo.....The brick of 22L is actually 100 rounds short of being a full brick of 500...They are vintage as you can see....But shoot well....Not sure when they were purchased...maybe late 60s or so.....Its a good gun that needs nothing.....I also have a soft gun case that will go with it.......If you have any questions please do let me know...Thank you...