This was a gift from a WWII veteran in the 10th Mountain Division and acquired these in Africa, 1945.
Beyond understanding they are mad from steel (and later aluminum) they are known a field buckle or Koppelschloss.
The leather tag does read 1941 (sorry for the terrible photo). I can add some chalk to bring out the imbeded writing if needed.
Any help is greatly appreciated.
Thank you
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