Does this shape appear in other series? No - (none in image database).
This number is rare. There is no example in the image database.
Height; from the shape book, 8-5/8 inches (22 cm)
Shape book 'B'
Agate Ware range, 185 - 193.
In shape book 'B', the page for numbers 185 & 186 is headed "Variegated Ware". The sketches indicate this style by scribbled shading. The same scribbled shading appears on each shape in the range 185 - 193. There are so far only a couple of examples in the image database, and they are indeed agate ware.