They came from a friend who was clearing out a deceased relative's house. They were with the record player/ audio stuff but might not be anything to do with it. They are about an inch long and were in a tin.
AI Overview These are likelyMaster Model turned brass gun barrelsfor scale model aircraft kits, specifically Hispano 20mm cannons and fairings for a Supermarine Spitfire with a Type C wing. I don't know what these files are for.
