#2 Art is right!
This is a useable antique upholstery tack puller. It has a unique design with a steel pivoting lever and one moving, and one stationary jaw to grasp the medium large head upholstery type tacks. The pivot lever allows additional leverage and firmer grasp of the same type tack. It is possible to use it on other than upholstery tacks but seems to work best on tacks with the larger heads.
Thanks Art