BARRY PLATE (AKA) by Gillinder & Sons (1863-1891), c. 1885
Sid Lethbridge - Pretty sure that this can be assigned to Gillinder. There is a See Saw plate in their c1885 catalog with the same shape but different center.
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Shape: Plates - Platter
Contributor: Robin Fisher Cisne

Shape: Plates - Platter
Contributor: Robin Fisher Cisne

Shape: Plates - Platter
Contributor: Gene Serbus