Anemometer and case, Approxamitly June 29th, 1909

Historical information

Calibration tests were made June 29th, 1909, all else is unknown.

Physical description

8386.1 - Biram's anemometer, 6 inch diameter, 5 dials, ten blades. "No. 1544," with wooden case and hand written note detailing applicable corrections after calibration tests.

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