I have references that show U-18 with her conning tower camouflaged with grey colors graduating horizontally from the bottom (dark grey), to the top - lightest grey. Does anyone have any other photos or knowledge of whether the other boats of 30th Flotilla were camouflaged the same way? Also was the additional AA platform added to the rear of the conning tower common to all the Black Sea U-boats? I am building U-9 in her Black Sea configuration and would appreciate any info - much thanks in advance.