Nice photos Leendert. Thanks for posting,
Alex, I don't think that there is any doubt that the photo I posted and the simiarly coloured photos in Leendert's post show wartime machines.This link from the Coast Guard Aviation History site mentions that this scheme was adopted post Pearl Harbour,at which time four PH-2 were still in service
https://cgaviationhistory.org/1938-c...-flying-boats/
Alas, I didn't copy the photos from my post to the earlier thread.
Clint