[twocee]

Thanks for finding those two rare floatplane photos. Based on Bill Larkins' writings it appears that they were from VS-6B, assigned to a cruiser division in the US Battle Fleet. Two of the cruisers whose names appear on the aircraft in the photos were Milwaukee and Cincinnati, the others being Concord and Omaha.

One of the aircraft, 6-S-3, has a visible BuNo, identifying it as Vought O3U-1 A-8817. This was attached to Milwaukee in 1932/33, thus giving a time frame for the photo.