The Fancy Fox has dated this piece to the 18th Century.
Reference: Worcester Blue & White Porcelain, Branyan, French & Sandon, section II.C.4, described as "very rare".
We have not come across another documented example.

It measures 6.5cm (2 5/8") high, 8.5cm (3 3/8") spout to handle and 6cm (2 3/8") wide.
Condition is excellent; there is a small area of good restoration to the very tip of the spout but no other damage or repair. There is a small indent to the handle, caused during manufacture. A few kiln dust spots in the ribbing but not many. Handling wear is minimal.
The Fancy Fox has dated this piece to the 18th Century.
Offering fine porcelain and pottery, 18th century and later, silver, glass and other small attractive pieces
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