The first plaque below has a transfer from the same plate. As discussed in my May 23 posting, it is of a larger size (21.9 x 24.0 cm). It is also much better quality than the plaques above, and certainly pre-dates them (this is evidenced by additional spots and scratches, acquired over time, which appear on the Carr transfers, but not on this earlier imprint). I think this plaque is c1840s, and the Carr plaques are post 1861. If we could work out where the plaque below came from, then we might be a step closer to sorting things out. Interestingly, Richard Cobden appears on this larger plaque form (21.9 x 24.1 cm). So a likely date is 1846 when the corn laws were repealed.
In the second details of the first two plaques, note the curly mark to the top left. In the last three plaques, note the mark to the left of Cobden's left ear.
All answers on the back of a postcard please.