OK, all you fuze guru's here is one I have had for years laying in the corner and can't ID it. It is 200mm long and 60mm in diameter at tbhe flange. The main body is aluminum with a brass screw-in base element. The flange portion is a bakelite type material which, when you take off the nose portion of the fuze extends up inside the aluminum body. Other than the four holes to mount the aluminum nose there are no openings in the bakelite portion under the nose cover. The rest of the space in the nose is empty. The flat nose has 9 very small holes in it. There are no markings any place on the fuze. The fuze cannot be "set" in any visible manner. Was told it was a dust or static fuze but I can't see how this design would work that way. Any help?