HMS Rover cap tally
 

This may well be a theatrical item as I have no knowledge of RN tallies with Gothic letters. Comments welcome.

Postwarden

David B Howell is the man you want to answer this.:D

Hi Jon

The last HMS ROVER to wear a named tally was sold in 1893. There was a submarine of the same name in the 1930's but they would have offically worn HM Submarines. Tallies did have script lettering on special occasions ie launch day up to about the 1920's so the lettering could be right but the actual ribbon material for the late 1800's early 1900's is wrong and is that a popper on it in the picture.
So I would suggest a theatrical item.

David

David,

Many thanks

Postwarden