Aut cum scuto aut in scuto
This is a prime example of old school machining at its best. Machinistsquare, feeler gauges, thread pitch gauges, a 0-1" OD micrometer, anold school depth gauge, plenty of rules, triangles, squares, and (4)veneer calipers, each capabile of .001" resulution. The round thingsat the top may be PI tapes. In the days before large OD micrometers,PI tapes could allow someong to measure a large diameter round objectlike a paper mill press roll to .001" The triangular thing at bottomleft is probably a taper gauge. The tall thing at bottom center isa height gauge.It is amazing how much precision was availble to a machinist 100 yearsago! The two items at the bottom are probably precision straight edges.
Oops. The triangular thing at bottom right is probably a taper gauge.
ohohhhh god GOD YESYESYES!!!!
Damn C W this makes me feel old I have used all of these tools .
Gary, you're a lucky man to know how.