Llewellynn Frederick William Jewitt,
The ceramic art of Great Britain from pre-historic times down to the present day…
(1878)
“ The coffee-cup is a simple but very good specimen of heraldic decoration. It is part of a set made for the celebrated writer, the Rev. Robert Potter, Prebendary of Norwich and Vicar of Lowestoft, one of the most distinguished classical scholars of his time, and chiefly known for his excellent translations of Æschylus, Euripides, and Sophocles, and for other equally learned works. The cup bears the arms or, a chevron, sable, between three mullets, gules, pierced of the first ”
