Just had a quick look in Tony Gibbons, encyclopedia of Battleships .The colour illustrations show Black Hull ,Red bellow the waterline ,the superstructures are painted Buff/tan in the earlier illustrations and white in the later ships.Looks like there was a change in the colour schemes during your chosen period but I can't be sure I'm using an illustrated Battleship encyclopedia right now I'll check with my Conways and get back to you later if I find anything,hope this little bit helps