military training pamphlet Construction of dannert concertina wire obstacles with angle-iron pickets (provisional) - Engeland Voorschrift, 26/GS Pubns./193 Artillery training : Deployment of an air O.P. Squadron / War Office. Vol II - Engeland Voorschrift, 26/GS Publications/1203 Signal training. Vol. III : Wireless station maintenance and fault finding, and associated vehicle suppression systems - Engeland Voorschrift, 26/GS Publications/562