under the following license: English Diving mask with single integrated snorkel manufactured during the 1950s by the United Service Agency based in the
Alike 4.0 truetrue English This image illustrates four basic side-mounted snorkel shapes. object has role: photographer author name string: Helmardine Wikimedia
{{USS|R-6|SS-83}} testing the first U.S. Navy submarine ex[experimental [[snorkel]] in 1945. |Source = http://www.navsource.org/archives/08/08083.htm |Date