Hello Jen. Here's my try with colour, regarding the naval uniform, I was merchant navy not royal, & I must add, ( not 1914), so know nothing about the R. N. uniforms, I am wondering if your gran got the idea about the uniform from the fact that there is no name of a ship on the headband? as in wartime the names of ships were taken of so as not to let your enemies know where our ships were, I can't imagine a man deliberately wearing one if he was not in the service especialy a policeman as I believe it was a criminal offence, besides the fact that in those day's he would not have had many friends if he was passing himself off as a sailor in the Royal navy, anyway all the best, Ken.
