Yep, have seen news and documentaries with say a Type 22 or 23 frigate skipper and officers and sailors wear baseball caps......with the ships name on it and as MG says unofficially for years
@21:59, whats 'Wings' or Flyco got on his head in 1960 lol
https://www.youtube.com/watch?v=tsE9...A37D3E89608F68
and @07:29
https://www.youtube.com/watch?v=LFzRtOuj5GQ
cheers