I'm pretty sure it's a reblue, and, yes, the top of the slide is stippled. Looking at the breech face, it does appear to have the hardened insert, and there appears to be a liitle "bleedout" of corrosion from around it.
It's definitely an oddity. The right side logo pretty much seems to be roll stamped. I suppose someone could get a hold of that stamp, especially if they worked at Colt.
Last edited by gyvel; February 5, 2012 at 09:11 AM.