International wireless telegraph convention concluded between Germany, the United States of America, Argentina, Austria, Hungary, Belgium, Brazil, Bulgaria, Chile, Denmark, Spain, France, Great Britain, Greece, Italy, Japan, Mexico, Monaco, Norway, the Netherlands, Persia, Portugal, Roumania, Russia, Sweden, Turkey, and Uruguay.

"Extract from the International Telegraph Convention, signed at St. Petersburg, July 10, 22, 1875": p. 55-56. ; "Service regulations affixed to the International wireless convention": p. 23-54. ; Added t.p. in French: Convention radiotélégraphique internationale [etc.] Text in English and French, in parallel columns. ; At head of title is printed the seal of the Bureau of Equipment (Navy Dept.) ; Mode of access: Internet.