FL18505-1. By Hartmann & Braun. Steigungsanzeiger/Stellunganzeiger (airscrew pitch/position indicator). Black painted metal cased instrument approximately 6cm x 11.5cm. Luminous markings on the black dial. Data plate riveted to rear. 1938 dated. Believed to have been used on the Me109, Do17, Do217 & He111 among other aircraft. Surface wear/corrosion of the casing but the dial and hands remain very good. Ideally sold to the UK only due to laws relating to radium paint. Stock code M23321.