The Fancy Fox has dated this piece to the Regency era.

Quite possibly Rockingham, the overall shape, handle style, terminals, distinctive spout and lip shape along with the style and colours of the enamels closely resemble various ornamental jug pieces in "Rockingham 1745-1842" by Alwyn & Angela Cox and pattern number 512 in gold would tie in date wise with the 1820s.

But it is unmarked so Rockingham or not, either way a lovely jug, pretty shape and decoration.
It measures 5" high and 4 3/4" spout to handle. Condition is very good: a small 1" hairline down one side, enamels and gilding with minimal wear.
The Fancy Fox has dated this piece to the Regency era.
Offering fine porcelain and pottery, 18th century and later, silver, glass and other small attractive pieces
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