Looking for replacement parts for old MOEN bathtub

Hi,
I'm looking for two plastic rings to fit both the hot and cold handles on my bathtub in a house that was built in the mid-1950's. The brand of the faucet is Moen and the attached pictures shows the parts I'm looking for (handle base stamped F11896). These photos are of a sink handle, but they are identical to the bathtub handles minus the plastic rings.

Are there any individuals repairing old Moen plumbing fixtuers, or maybe someone with the original blow-up diagrams for these fixtures? ....Thanks

How do you know it is a Moen.

That handle looks like it has a plastic insert which allows you to change the broach size by using other inserts. I doubt very much that those handles are 60+ yrs old.

You are right about the plastic insert. I'll double check on the brand. But the house is very original and built in the 1950's....here's another photo of the fixture.

You need to take off the trim and take a picture of the stem.
I'm going to take a guess and say it might be American Standard AQUASEAL.
But that's like tossing a brown rice grain into a bag of white rice, stir it up, reach back in with out looking and trying to pull that brown grain back out. Good luck

Your right. It's not Moen, it's Crane. I'll get a shot of the stem next.

I wonder (as I frequently do... )

...if there is anyone saving old NOS pluming fixtures and cataloging specializing in older restorations, similar to auto restoration?

Good luck with that one. That is a Crane faucet. They have been taken over by American Std.