R-21 underway in Yellow Mill Channel off Bridgeport, CT. shortly after her commissioning in June, 1919. Note that the 3"/50 caliber deck gun has not yet been installed.
R-22 underway 1920-1922, probably in the Thames River, CT. south of the Submarine Base in Groton. Unlike the EB design R-boats, the Lake design stowed the gun with it pointed forward.
