Jerry,
I bought the gun ten years ago while I was trying to fill out my collection of WWII 1911's, about the same time I got a minty Union Switch and Signal. The gun's origin is a mystery to me other than it came from another collector who sold it to the dealer. The guess on the pencil mark is probably correct but there is no telling when the gun was sold for that price or when Remington Rand released these for sale to the public.
Just in the right time in the right place, I'm sure if I didn't buy it on the spot it would have been gone.
Mark
P.S. Although I do fire a mag of ammo through some of my collector guns when I receive them, this gun will never have a round chambered. (I hate to admit it but I have fired my 1916 Artillery Luger with the shoulder stock and snail drum mag, I could't resist!)