The number of machines actually produced must have been very small, so a surviving manufacturer's handbook in such excellent condition is a rare find.
WW2 AA DEFENCE HANDBOOK for the "SOUND LOCATOR, MARK IX" (Searchlight Equipment)
WW2 ANTI-AIRCRAFT SEARCHLIGHT HANDBOOK for the "PROJECTOR, A.A., 90-CM, Mk. V"
WW2 AA SEARCHLIGHT HANDBOOK for the "PROJECTOR, A.A., 90-CM, Mk. V1 or Mark VI*"
WW2 AA DEFENCE HANDBOOK for the "SOUND LOCATOR, MARK VIII" Searchlight Equipment
WW2 ANTI-AIRCRAFT SEARCHLIGHT HANDBOOK for the "PROJECTOR, A.A., 120-CM, Mk. 1"
WW2 ANTI-AIRCRAFT HANDBOOK for "LAMP, SEARCHLIGHT, H.C.D. 90-cm, MARKS I and I*"
