I walked into the middle of a TV re-run at my friend's house a while ago... I don't remember the name of the show, but I think it was Shooting USA(?). They were covering a SHOT show, and I sat down just in time to see a short piece on what looked like a 45acp version of a Colt "Hammerless". I dunno squat about model names, and that's just my best recollection. The rear of the slide hung over the back above the web of the thumb and hand, kind of like the very first-generation Broomhandle Mausers (I think that's what I mean...

), and the firing mechanism was completely enclosed.
Would any of ya'll know what I'm talking about? If so, I'd be grateful if you'd provide a link. I Googled "Colt Hammerless .45 acp" and searched LTW with the same and got no joy.
Thank you.
edit: I read the wikipedia page.. what I saw on the TV program looked like a 1903 Colt Pocket Hammerless, except I swear it was in .45 acp, and not .32 or .380.