They were called Pub Tokens Crommie. Here is an intro to a paper witten about them. It costs 30$, so I
saved the head line as it mentions Brum. They are collectable, some have landlords names or initials and others have the pubs name on them.
(1) Leicester City Museums, New Walk, Leicester, LE1 7EA, United Kingdom
Abstract This paper, based on research carried out for the author's Ph.D. thesis (1996), explores the uneven national distribution of tokens used in public houses in England and Wales c.1830–c.1920. It argues that after an initial, geographically restricted, consumer-led phase, pub tokens became a primarily supply-led phenomenon, with die-sinkers (especially those based in Birmingham) actively creating a niche for their products. The spatial patterning of pub tokens reflects their customized nature and dependence on traditional regional marketing networks.
tokens - pubs - nineteenth-century