20x110mm Hispano Suiza dummy "BP.C 1942 20MM M21"

What is “BP.C”? The wooden core moves a bit. The projectile has “H.W.B.-5 3-43”.

I have BPC listed as Bowen Products Corp. , Ecorse, MI, USA.
They made Hispano cases from brass and steel. A nice Dummy I had not seen.

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