British Ordnance Collectors Network

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percussion primer

  1. B

    Japanese Primer or What???

    Gentlemen, I am at a loss with this item. I would like to draw upon the knowledge of this group to help me identify this . The item has the characteristics of a Tube Vent Sealing Percussion Primer BUT… it is threaded AND it has the square protrusion which I cannot find on any of the documented...