Nice mic. Etalon, the Cadillac of micrometers. Did you remove the friction sleeve? The black plastic knurled sleeve.
Also, you don't really need a standard for a 0-1" mic. As long as the spindle isn't shaky and the carbide face are clean., you'll be OK.
Just use the wrench to adjust the thimble to 0 once it's lightly closed and locked.
Etalon makes THE best mechanical mics, IMHO. I own 4 of them. I thought of buying a metric Etalon. I would really like a MicroRapid 0-1".
New locks are available for these old Etalons from LIIS, in case yours is loose.
Thanks. This one didn't come with a friction sleeve, but I've seen pics of older ones without one, so I don't know if it had one or not. Spindle seems fine and is extremely
smooth and the faces look good. It was close to 0 to begin with, but I adjusted it up and now it's right on the money. I think I did OK on this one.
If you're looking for a metric Etalon, there are several on eBay right now, including a NOS one with interchangeable anvils, as well as a 0-25 mm MicroRapid. Not trying to
tempt you or anything...