File:Operator's certificate of skill in radiocommunication (1911).gif

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Summary

Description	English: Under the provisions of the Wireless Ship Act of 1910, shipboard radio operators had to be certified as being proficient
Date	25 May 1911
Source	Illustration included in "Breaking Into the Wireless Game" by James M. Baskerville, Radio Broadcast, May 1926, page 22.
Author	Official document prepared by an employee of the United States federal government

Licensing

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