I've got another unknown token for you to help out with!
I'm sorry the images aren't brilliant - it's a tiny coin (~12mm) and quite dark. The lettering I can make out says " 'M OF ONE CROWN L CHR LA??R", and 1887 on the reverse.
I have a similar piece with Edward VII that is a 3 pence. The L CHR LAUER that you see is Ludwig Christian Lauer, and I believe they are referred to as "toy coins" used in games in the UK. I am not sure if they're worth anything.
It is a Toy coin. L. C. Lauer made several different toy coins of this type. I have the 2 sovgn coin of this type listed in the token section.
Mine is 13 mm and made of brass.