German-Made Polar Planimeter Similar to Amsler Type 1
Unknown
Germany
Brass
Unknown
N/A
General area measurement
Notes: "This is a very small (6 inches overall length) all-brass polar planimeter with no name or model number on it, only ""Germany"" and the serial number, 5097. The pole weight is not removable and is screwed to a swing-out arm. "
