RN Cap Tallies. Help sought

[NewRNcollector]

Pete,
thanks for the reply....very interesting!
I didn't even know about such tallies, so this is good/bad news.
It is very pretty though.

I have a blank tally with no name or anything on it....I was told that these were used in WW1 for ships....H.M.S. for WW2 I guess.
Is this true or have I got just a nice piece of ribbon?

thank you very much for your help.
Paul