Göttingen Collection of Mathematical Models and Instruments

Case number 47

Polar integraph of Prof. M. Franck Optical planimeter from Schnöckel Integration triangles from Thaer Planimeter
Surface measure plaques from Kloth Harp planimeter from Oldendorp Harp planimeter from Oldendorp Polar planimeter with calibration circuit
Surface measure plaques from Kloth Moment planimeter from Amsler Integraph from Coradi Integraph from Abdank-Abakanowicz Coradi

The corresponding bottom case is: Case number U 47

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