Ive recently aquired a 1905 13 pdr blank and wish to know more about it. Markings VS &M ( in a circle which i beleve to be vickers son and maxim )BLANK 13 pdr l wd arrow over 7 . . 14 2 11 (refilled) and a solid brass dummy primer marked DUMMY with four AAAA in a bunch and on the other end 5 over 14882 with VSM.what would be the purpose of a dummy primer on a blank cartridge? And how was the end sealed ? Thanks .Darrol.hope to put some pics up tomorrow .