Sperren Working instructions (Canadian) : Wireless sets no. 19 : mark I, mark II and mark III : Part I : Z.A. 21575 (P.C. Ref. no. … Working instructions (Canadian) : Wireless sets no. 19 : mark I, mark II and mark III : Part I : operating : Z.A. 3109 : … Working instructions (Canadian) : Wireless sets no. 22 : part I : Z.A. 14048 Equipment scales : For rifles, no. 5, Mk. I / issued by the war office field survey pamphlet Training of survey personnel / prep. under the dir. of the Chief of the Imperial General Staff ; [issued by the War Office] Dienstreglement instellingen Ministerie van Defensie : voor het burgerpersoneel, werkzaam bij onder het ministerie van defensie ressortende diensten en instellingen field manual Defense against chemical attack Zoeklichttechniek field manual Medical department units of a theater of operations field manual Physical training field manual Infantry battalion