I recently picked up this split-head rawhide hammer for a few bucks. It's cool that the initials for the company are even stamped onto the handle. I surmise that the shape around the C/R logo on the head and handle is supposed to represent a stretched hide.
The tool needed new 1-1/2" rawhide faces, which are cheaply available through McMaster-Carr.
Founded in 1878, Chicago Rawhide continues to make seals (but not hammers) as part of the SKF empire, which acquired them in 1990.