Only when I laugh
I think I must have crossed over from another post, disregard the "I". However, I see no British marking of any type so it was not used by the British police nor is there any evidence it has ever left the U.S. It is simply a H&R revolver in 32 S&W caliber made between 1905 and 1939 ( in 1940 H&R added a letter prefix to the serial number ).