Centers for a polishing lathe?
Sounds reasonable. You got me thinking wood lathe. (if I was to sand ect on a lathe I'd probably do it on the wood lathe. Save the metal lathe)
I searched for centers like that on wood lathe sites, but came up empty.
Centers for a polishing lathe?
There seems to be some contact marks (burnishing?) on three of them.
Really curious why they have spring clips.
Are they all hollow with a centre divot inside?
They are stand off gauges for measuring the depth of a taper. No doubt for a specific job. The gauge is placed into a tapered hole, then measured from the end of the work piece to the shoulder. Oh yea... the handles are missing.
Wine glasses for machinists?
Very (very) small-batch cement mixers?
A new style of low-rider rim?
Bowling pins for the backyard?
Peach pit removers?
Alpine cow bells?