Canons rayés, systèmes Armstrong et Whitworth / E. Buchwalder Another "Story of the guns" : or Sir Emerson Tennent and the Whitworth gun Design of Quadrupod Mounting for .5 inch Browning air-cooled machine gun Het Gloster 'Meteor' F.Mk.4 jachtvliegtuig met registratienummer I-69 ex R.A.F c/n VZ409. Het Hawker Seahawk FGA Mk.50 jachtvliegtuig / boordvliegtuig met registratienummer 131 van het vliegdekschip Hr.Ms. Karel Doorman (R 81) der Marine Luchtvaart Dienst Report of the special Armstrong and Whitworth Committee : Vol. 2 Miscellaneous papers on mechanical subjects / By Joseph Withworth, F.R.S war works of Sir W.G. Armstrong : Whitworth & Company Ltd system field artillery material of 76 M-M / Armstrong report of the Armstrong and Whitworth Committee, with a letter thereon to Earl De Grey, and Appendices / J. Whitworth Report of the special Armstrong and Whitworth Committee Pamflettenoorlog 1939-1945 / Nico Geldhof