We had one of these "RIZLA" shop dispenser posted by CDM quite a while back, in fact if you look back in the archive P. 26 23/03/2011. I ended up buying it but have since past it on.
They are quite rare and of interest to mainly "RIZLA" or "Tin" collectors or like yourself dispenser collector. Condition is important but from memory, I paid around £100 a few years back.
Have posted a picture of mine.
bacco