This early 19th C Wedgwood, Etruria teapot has a white ground with an applied relief grapevine band in deep blue. It is pictured in plate 105 of the book "Wedgwood" by Wolf Mankowitz.
It is about 3-3/4" high, and about 6-1/2" long. It is in excellent condition. There are no cracks, chips, or repairs. There is some staining to the lid (see photos). There is an "in the making" flaw to the interior of the handle at the top where it joins the pot. There are 3 tiny nicks on the thin interior rim of the teapot. Both lid and pot ring when tapped.
There are 3 marks : an impressed WEDGWOOD, an inscribed X, and an inscribed Z . The teapot dates c. 1810.
The following information is from Mr. Mankowitz's book. He says, "The Dry Body is not as hard or as fine as jasper. The body is not found polished. "White ware" is a pure white biscuit of soft body, and is highly porous. A fine lead glaze was ...used on interiors of items intended to hold liquids."
He further states: "Highly decorative effects were obtained by the application of reliefs...after the jasper style. This has often led to dry body items being wrongly described as "jasper".