Old measuring equipment

[His Dudeness]

What are you going to measure? you lost me after Mitutoyo micrometers, :lol is this for rebuilding engines or checking tolerances ? slip gauges?drrrr my brain's froze, :lol

Mitutoyo is a company that makes top quality measuring equipment https://www.mitutoyo.co.uk/en_gb/

Slip gauges are precision blocks that you check you measuring equipment against. A tool maker or engineer that does fine measurements would have a set of slip gauges to check the accuracy of his measuring tool against https://en.wikipedia.org/wiki/Gauge_block

If you look through the engine section of the manual it shows what you'd be measuring. You could measure most things in an engine with a set of micrometers, a set of bore gauges, a dial indicator and plastigauge