It may have had markings but I sure don't see any. I like the built in keychain loop though.
(http://i301.photobucket.com/albums/nn48/kxxr/tools/benthandlescrewdriver.jpg)
Screwdriver, and look closely for marks, it looks a lot like the elusive Mossberg screwdriver.
Sure looks like a screwdriver tip to me.
(http://i242.photobucket.com/albums/ff7/mombodog/benthandlescrewdriver5.jpg)
I thought screwdriver too. I only made it a whatsit because I couldn't figure out which category to put it in. Papaw, do you know about where the mark might be found. I can make out some spots that could have been part of a stamp, but you know how it magically appears once you know what you're looking for. I'm thinking M inside a diamond? or would it be a different mark?
I actually had one similar now that I think about it, who knows where it got off to, they were popular in the 50's and 60's. They sat in a box by the cash register, impulse item.
I've never had one nor held one in my hand. M in a diamond is Mossberg.
IHC had a couple that look like that. I don't think they were marked but am not sure.