Hello,
Currently on ebay are two photos of KuK flying boats as follows:
Albatros G 2
https://www.ebay.de/itm/224681124480...cAAOSwHINhh~pD
Albatros S 4
https://www.ebay.de/itm/224681119583...wAAOSwLJ9hh~kg
I have posted these images previously, however it seems worth reposting as these are higher quality images and in case the links to the previous photos are now dead.
Regards,
Clint