A Staffordshire Wesley?

Before Christmas, Doanld H Ryan pointed out the similarity of a plum-bordered Wesley plaque to those with George Kinloch.

I gave it little thought until I received the images below from Keith Lovell. Not recognising the floral decoration, I asked around and got this response from Ian Sharp:

'The jug is certainly not north eastern. It has the look of Chesworth & Robinson, by the type of engraving, they were quite prolific with their commemorative subjects. This is just a stab really, but both pieces, certainly not Sunderland/Tyneside.'

After some internet browsing I found a 'Reform' jug with flowers (below left) attributed to Chesworth & Robinson. It has a transfer of Earl Grey similar to those on plaques (below right). But don't get too excited. Ian Holmes measured the plaque and it is 170mm diameter, whereas Wesley and Kinloch above are both 160mm. The Earl Grey transfer on the plaque clearly differs from that on the jug. The plaque has the impressed mark 'C.C&Co.', for Cornfoot, Colville & Co of the Low Lights Pottery, Newcastle. Whereas the jug was made in Staffordshire. (C, C & Co also produced circular pink-lustre-bordered plaques of William IV and Queen Adelaide.)

I also found this Kinloch commemorative mug with flowers. I've repeated the photo of the plaque so you can compare.  More research needs to be done, but it seems that the Kinloch and Wesley plaques were made in Staffordshire, at least.

While measuring the Kinloch plaque, Ian noticed something else interesting. It has a circular impressed mark made up of 8 segments. This mark also appears on the Wesley plaque below.

So we're looking for a Staffordshire pottery that might have used the above segmented circle impress.