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Discussion in 'Horological Tools' started by Dave Coatsworth, Dec 6, 2017.
Came to me in a watch repair tool lot.
Sieves for polishing powders?
I showed the image to my master who has been both a watchmaker and manufacturing jeweller virtually all his life and he's way older than me. He said, he's never seen anything like it in his life.
They look similar to the serrated anvils you can get with dial gauge/comparator stands - http://www.mqs.co.uk/serrated-anvil-101462.html
Serious calibrating stuff?
I suggested grading polishing compounds to my ex master and he just said,, um. and changed the subject. OK he is well into his eighties but He's still making jewellery even though he gave up watchmaking when he had to start fixing the first accutron he'd bought. I remember asking him about a Kundo ATO of his best mates which I remember servicing as an apprentice and that was his reply, I don't know, don't you remember? That's when I gave up fixing the damn things and gave you the job.
I would say that they are nothing else but. My own comparator stand is equipped with a similar anvil rather base also serrated, except that mine is rectangular, not round.
Those metrology anvils are very accurately ground for flatness. Does the OP's seem to be the same type of accuracy? With the rim around the edge I would make it more difficult to machine?? Also they look like brass or something.
Perhaps the OP can add more information.
They are steel and do indeed appear to be very accurately machined.
Thank you Dave. From the pic it looked like they were brass or copper.
Very interesting indeed.
Have a look at 0.15 in this video. It shows something very similar to what you have here, albeit in plastic. Looks like it's used to hold screws for easy acess during assembly.
Thanks, Karl. I think you might be on to something. That would explain the rim.