German airship compass, DRGM No.584917 by W. Ludolph GmbH, Bremerhaven XVII 199 German airship compass
Creagh-Osborn type 5/16 liquid aircraft compass, used on scouting aircrafts during the First World War, also known as 'Quick Period' compass, patent no. 1148/15, developed by Captain F.O. Creagh-Osborne, made by Henry Hughes and Son Ltd., London, 1917-1919 'Quick Period' compass for scouting aircraft 1917-1919
Liquid inside glass bottle, from inside German airship compass, DRGM No.584917 by W. Ludolph GmbH, Bremerhaven XVII 199 Liquid from compass
Aero compass patt.254, no.38 Creagh-Osborne type pat.no.1148/15 and 11736/15. Fitted with azimuth circle for use in emergency as standard compass. For large airships as a steering compass Aero compass patt.254
