Klein's Sporting Goods had initially shipped surplus Carcano model M91 TS carbines ("moschettos") under their "Italian carbine" ad. However, effective April 13, 1962, Crescent Firearms, the wholesale supplier of Italian rifles to Klein's, had been unable to supply Carcano TS carbines, and had switched to surplus Carcano M91/38's, which fired the same 6.5 x 52mm ammunition. The M91/38 rifles were a slightly longer short infantry version of the Carcano TS and had a barrel rather than the barrel of the TS carbine model. They also had a completely left-side-mounted sling rather than the under-stock sling of the TS. Thus, while Oswald got a slightly longer M91/38, which was not quite the same Italian rifle shown in the advertisement photograph (the ad photo was not changed until April 1963), he did get a very similar telescope-modified Italian 6.5 mm short rifle.