Coffee cup, Qianlong c.1780, with the crest of Browne of Brenchley
The crest on this coffee cup is that of Browne of Brenchley in Kent, and of London, with initials C.A.B. Three services were made for this family at this time. It is not certain which member of the family bore these initials.
See also a teapot stand (stock number 42417) illustrated as second image here with the full arms including this crest.
Reference : Howard, David S.; Chinese Armorial Porcelain, Volume II, p.461