Got a MK8Z from K5 = Kynoch factory at Kidderminster Worcestershire, GB= Greenwood & Bately, DI = Defense Industries Verdun, Canadaicon MKVII Z = Ball Nitro-cellulose, P.O.F = Pakistan Ordnance Factory (Absolute crap ammo) Radway Green 8Z. Pretty sure the R /|\ L Royal Laboratory one thats H/S W I (1?) is armour piercing, a nice early 1935 RL nice bunch there anyway others at the top bit dark still a fair few 8Z'eds in there.