Thayer Combination Tack hammer

This is a nice looking little brass and wood handled tool, about 9 1/2 inches long, a combination of hammer, puller, flat screwdriver and rule. Patented in June 24 1862, Thayer described it as a “shank or bar graduated to form a scale” with a “screwdriver and a claw on the ends of said shank or bar,” with an adjustable “handle or sleeve” and an adjustable “hammer-head.” 

The idea is to slide the handle/sleeve and the hammer head away from their respective ends to use this as a screwdriver and claw, and back down into their end positions to use it as a tack hammer and tack puller. I'd just hang it on the wall.

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