This is a Kynoch 50 round box of .303 Miniature cartridges for the Mullineux adaptor. The adaptor was designed by the Kynoch company and was used for training with the .303 service rifle with reduced costs and recoil. The cartridge was put in a steel and brass adaptor and could be fed normally in the magazine of the Lee Enfield rifle. The rounds have a lead bullet with a circular case mouth crimp. The brass rimmed cartridge cases are headstamped KYNOCH ADAPTOR and have a copper primer fitted. The cartridges are contained in a buff cardboard box, each inner and outer having steel clips to reinforce the corners. The tallow closure label is printed in black 50 KYNOCH .303 MINIATURE CARTRIDGES FOR THE MULLINEUX ADAPTOR CORDITE. Kynoch Limited TRADE MARK WITTON BIRMINGHAM. The price includes UK delivery and no licence is required to possess these inert rounds in the U.K. if retained as part of a collection or display. Sn 22787:19