Never heard of a Colt Commander Govt. I have been a big fan of 1911's for many years. I am pretty sure that pistol is a WWII era 1911a1. Proof mark is below the mag release and it looks as tho there are inspector marks below the slide release. It has the safety, trigger and mainspring housing type that was used during WWII era pistols. The guy has no idea what he is talking about, but that is nothing new in the world of firearms.
Me either. This dude doesn't know what he is takling about.