I cannot say that it came from my uncles estate with certainty, so I have no familial provenance for it.
It has been worn and bears surface scratches, and a small dent in the lower left-hand corner.
The overall style & size is similar to an English belt-buckle Dad wore in the 1930s & '40s.
The buckle face is 5.5cm X 3.1cm; weight is 23gm; Picture of backside on demand.
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Now that I've gone this far, I realize I should have searched the site for Mitsuhara prior to posting this topic.
I will correct that lapse in research today, and apologize for this (probably unnecessary) clutter.
As always, I'm grateful for your interest, and welcome all comments. wlw