I quite recently acquired this lovely piece, it’s for tightening up .50 cal belt links. I’m not sure how it has ment to be used, if it was for assembling of .50 cal ammunition belts, or just for making sure each round was positioned right before use.
If anyone has more information about the use of these, please fill in.
Cranking the handle:
I’ll try to clean up those brass signs. One has a Broad Arrow, and the year 45 stamped.
Edited: Corrected the name, Johnson instead of Jackson.