Many wares are attributed to the New Hall Porcelain Works of Staffordshire, but few are actually marked. This "London"-shape milk jug from a tea set sports the printed mark "New Hall" within a double circle. According to Geoffrey Godden, this mark was "sparingly used".
This mark was used on a new type of bone china introduced about 1812, and used up to 1835. It is Godden's mark 2875. You can see a photograph of 3 similar bat printed New Hall milk jugs on page 180 of "Godden's New Guide to English Porcelain".
The shape is shown on page 100, plate 596 of Michael Berthoud's book, "A Cabinet of British Creamers". He dates it c1815.
The piece is 6-1/4" long and 3-3/4" high. The condition is fair. There is wear to the dark brown color used on the rim, some discoloration at the interior of the pouring spout, some scratches to the print, and a tight crack in the base of the handle where it joins the body. The creamer rings when tapped.
There are two different bat prints, each of a mother (in circa 1815 dress) with a small child.