development of the Mills woven cartridge belt 1877-1956 / A.A. Lethern Duel boven Engeland : het facinerende verhaal van de slag om Engeland / Edward Bishop ; [vert. uit het Engels door J.F. Kliphuis] Tanks and tank-folk / by Eric Kennington paper on high-speed tool steel, its manufacture and use / read before The Coventry Engineering Society by J.M. Gledhill