In war baby there is mention of reeceivers having name and serial ground off at the Saginaw plant for transfer purposes, one of posters here has one that had saginaw sg ground off and then Inland Div stamped over the top so there is proof needed to confirm was done at Saginaw SG-some presentation guns were ground off at NPM also as is letter from Army or someone in War Baby comes home stating that for them to give away name and serial had to be removed. I am typing from memory so I may have read somewhere else also. I think guy grabbed one of them and must have been half way honest as either barrel or the receiver was a out of spec part and requires the shims to head space properly. Also may be was never done properly too.