Measure for measure

Classics. A set of Moore & Wright dividers, wrestling external calipers, naked; an instrumental coupling of precision tools.

A few years ago we were in the Riverside Museum in Glasgow. My enduring memory isn't of the tall ship parked out the back or the very clever display of bicycles suspended from the ceiling or even the stunning Zaha Hadid architecture but of a wonderful display of vintage callipers/dividers and drawing instruments.