Decent catalogue of British co-operative tokens / history [opgelost]

Hi, does anyone know of any decent reference material for cataloging British co-operative tokens ? I am trying to get a date range for various types of co-operative tokens, either by type, or worst case, the dates that the particular societies were active for …. 
So in first case, I am after some kind of history of British co-operative societies and when they were active from / to, or even better, narrowing a date of a particular token by society / type …..

Really struggling to find anything useful ….

many thanks

cheers

Coincoll22

I might have found something - waiting for delivery before commenting further 😃

Co-Operative Checks and Tokens.

Douglas Rains

3rd Edition 2014

Galata Publishing

No valuations or pictures, but a comprehensive catalogue of co-op tokens with comprehensive descriptions and dimensions.

Interesting subject - I added this (N# 322869) a few months back.  It's very thin and I didn't recognise what it was until I started looking through Numista.   Faversham is only about 10 miles from where I live, so it's also quite a good find for me.   

Q. - Are you specifically looking for Coop branded tokens, as in the modern Coop chain of stores, or co-operative societies in general?