Calipers

Calipers are used for transferring measurements in both wood and metal working.  The pair in the top photo is for taking outside measurements, while the pair in the photo below it combines both inside- and outside-measurement capabilities.  The one on the top looks hand-made, while the one below it looks to have been manufactured, although no maker’s name is present.  Making such tools would often have been a task placed before an apprentice machinist.