🔎 UNIDENTIFIED Help please

[grins]

Any thoughts. It was found on multi-component site. It's not quite as thick as a quarter. Maybe brass. No writing that I see. Google said Chinese coin and on a internet site they showed these to be saddle rosettes.

 

[mmocha2905]

Drawer pull ring backplate? I found one once, had a square hole like that

 

[mmocha2905]

This is the one i found.

 

[cudamark]

Maybe an adjustment knob that mounted on a square shaft?

 

[Blackfoot58]

square hole usually makes me think of a square shouldered Carriage Bolt. Possibly what’s known as a fender washer.

 

[xr7ator]

Maybe an adjustment knob that mounted on a square shaft?

I would think if an adjustment knob it would have a reeded or machined edge.
I have found very similar and unsure.

 

[mmocha2905]

It is true that a drawer pull backplate is usually somewhat convex, where these are flat.

 

[unclemac]

not a coin... sometimes the new tech falls pretty flat!

 

[searcher]

Maybe this is it.
The middle or back disc to a multi piece Military insignia pin.
There would be a screw on back.
Some are flat. Some are slightly domed.

 

[Retired Sarge]

Example of that style collar brass/disc, the Type 3A in use from 1937-1943.