Tek. nr. C.225158; 11 mils. Harmonization diagrams for 30 mm Aden gun. Hawker Aircraft Limited, Kingston-on-Thames Tek. nr. C.218288; Harmonization diagrams for 30 mm Aden gun. Hawker Aircraft Limited, Kingston-on-Thames Tek. nr. D.225808; Preparation of Aden guns & pack. Hawker Aircraft Limited, Kingston-on-Thames
