DMM 49052

Museum: Deutsches Museum, Munich

Title: Sector

Inventory number: DMM 49052

Date: To be established

Material: Brass

Dimensions: Lenght = 16,5 cm

Description: See Schneider, 1970 p. 79f.

Preliminary examination of the metallic scales: Only one metallic line is in a very unusual place, that is to say, not on the two major limbs, but in a section attached to the bottom limb, which goes inside the upper limb when the instrument is closed. Notice that jupiter comes before mars (it is the opposite in DMM 72881).

References: Schneider, Ivo: Der Proportionalzirkel: Ein universelles Analogrecheninstrument der Vergangenheit. Deutsches Museum: Abhandlungen und Berichte. 38. Jahrgang 1970, Heft 2. München, Düsseldorf 1970, p. 79f.

Measurements of Scales (in mm)

Metallic Line