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NH 115153 Gyro compass testing

Gyro compass testing
Title: Gyro compass testing
Caption: Getting out equipments for destroyers keeps all test apparatus busy. These compasses are run 48 hours continuously in this manner, the heading being changed every eight hours. The most vigilant watch is kept on all parts during these sea-going tests and careful record made of all results. The Sperry Gyroscope Co., Brooklyn, New York.
Description: Copied by L.C. Handy, Washington, D.C.
Catalog #: NH 115153
Copyright Owner: Naval History and Heritage Command
Original Creator:
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Before this Year:
Original Medium: BW Photo
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