Stoke on Trent - Potteries / Potters index.

Not sure if this is relevant ? or where to stash it but was locking through the Stoke on Trent website and then have a mark resource

Main Mark Index
http://thepotteries.org/mark/index.html

A-Z List of Initials or Combinations of Initials used as Marks (or sometimes incorporated in Various Marks) used by British Potters from c 1775.
http://thepotteries.org/mark/initials.html

Index of over 1900 Stoke-on-Trent / North Staffordshire Potters
http://thepotteries.org/allpotters/index.htm

Moved to the relevant section. 
A very useful resource. I’ve used it a few times