U.S. Navy Mark V Diving Helmet Belt Buckle - Brass Finish

DESCO U.S. Navy Mark V Diving Helmet Belt Buckle in Brass finish. Will accept up to a 1 1/2 belt. Size of buckle is 2 1/4 x 3 5/8

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10.5 Mark V Brass Helmet Replica On a Wooden Base

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U.S. Navy Lieutenant's Cocked Hat, Sword Belt, Epaulet Kit

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Glossary of underwater diving terminology: H–O - Wikipedia

Lighter, MKV Helmet,Zippo Colr/Ligt