An extremely rare set of four mid 18th century enamelled copper wine labels

An extremely rare set of four mid 18th century enamelled copper wine labels, of escutcheon form with gilt scroll borders, each painted with a pulto wrestling a fawn, with a blue sash billowing in the wind and a landscape with a tower and figures in the background (each scene slightly different), entitled 'PORT', 'GIN', 'CURACOA' and 'SHERRY', probably midlands, Staffordshire or Birmingham, c.1750 (some damages) 2.9in (2.3cm)wide. (4) Literature: Salter. J: Wine labels 1730 - 2003 pp.298 for full details of this type of label, where it states 'possibly some of the copper plates engraved by Ravenet were acquired at the Battersea sale by Staffordshire factory and were then used to produce labels of the decoration of midlands enamellers. Some say the word never is always a risky one to use, however failing any definite evidence that this (a similar label to these illustrated), is a 'Battersea Ravenet' it should be considered a probable 'Staffordshire Ravenet' or 'Birmingham Ravenet'.