Museum artifact.  Any idea as to mfg. and type hammer?

Carpenter's hammer with nail puller. Interesting design; probably someone's attempt at making a better mousetrap.

I didn't see one like that in the 1897, 1905 or 1908 Sears Roebuck catalogs so not a popular model, I checked a couple of antique tool collecting books as well. No Luck---which is strange as I've seen one in person like that.

I believe that carpenters hammer has an adze on the one side (as well as the nail puller) to do whatever final shaping or trimming was needed.  If someone has the book The King of Tools, it’s probably in there.

Maybe a roofing hammer for shingles with the nail puller. 

 

It's a Henry Cheney Hammer Company Adz Hammer #777 should be marked. This one is a first generation hammer.

http://www.datamp.org/patents/displayPatent.php?pn=1517043&id=15121

From Worthpoint auctions, can't post a link to commercial site.

Quote

Henry Cheney Hammer Company No. 777 Adz Hammer From what I've researched this is the combination of three hammers based on a single patent. U.S. Patent 1,517,043 was issued on November 25, 1924 to Andrew C. Benson of Beaumont, Texas for his Adz Hammer. This hammer is the 2nd generation of No. 777, weighs 1 pound 12 ounces, and is quite unique in its looks.