Cannon I was in Vieques, Puerto Rico. I was at the : Conde De Mirasol Museum and they had a lot of cannons on display but this one cannon was different to all the other because it had that insignia.
Edit: The cannon had the date : 28-2-21
a Cannon bearing a Crown symbol and the initials GR for Georgios Rex reference to the reigning monarch King George.
It's a British cannon, i think the actual fabric was in scotland.