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Advertisement by patent agency Victor J. Evans and Company
Uploaded a work by Victor J. Evans & Company made the ad; published in ''Aero'' from Journal ''Aero'', 15 July 1911, [https://www.google.com/books/edition/Aero/iok_AQAAMAAJ?hl=en&gbpv=1&pg=PA339 p. 339] with UploadWizard