Is this a scribe ?

[jimwrench]

 This  looks vaguely familiar but I can't pin a usage on it. The pins in the arms are different lenghts so the points are in plane. No markings.

[superzstuff]

Looks like some sort of "memory" gage used to keep locations of three holes in a mechanism so when it is taken apart, it can be reassembled with holes in same locations. Just a guess.

[jimwrench]

 You may be right on Super. Old tool collector friend said it was a jewelers tool and he had one just like it.
Exactly what kind of locations were transfered I don't know but we have it narrowed down.

[Billman49]

Clockmaker's tool for transferring hole centres from front to back plate, or vice versa???