Unidentified Pink Lustreware Tea Set

I work for a museum and these pieces were added to our collection without identifying information almost thirty years ago, possibly as a donation by a local family. We're going through the process of trying to identify and catalog them, and any hints as to when they were made and who made them would be helpful. The attached pictures are of a sugar jar, a slop bowl, and a teacup. I should add that we have found no maker's marks across any of the pieces.

 

I'm hopeless when it comes to British pottery, but it's pretty.

 

Came across this one with google lens: https://www.ebay.com/itm/166974493693?customid=&toolid=10050

I think the dating is right, about 1820 to 1840.

Here's some info via wikipedia:
Lustreware became popular in Staffordshire pottery during the 19th century, where it was also used by Wedgwood, who introduced pink and white lustreware simulating mother of pearl effects in dishes and bowls cast in the shapes of shells, and silver lustre, introduced at Wedgwood in 1805. In 1810 Peter Warburton of the New Hall porcelain factory patented a method of transfer-printing in gold and silver lustre. Sunderland lustreware in the North East is renowned for its mottled pink lustreware, and lustreware was also produced in Leeds, Yorkshire, where the technique may have been introduced by Thomas Lakin.[44]

Wedgwood lustreware made in the 1820s spawned the production of mass quantities of copper and silver lustreware[45] in England and Wales. Cream pitchers with appliqué-detailed spouts and meticulously applied handles were most common, and often featured stylized decorative bands in dark blue, cream yellow, pink, and, most rare, dark green and purple. Raised, multicoloured patterns depicting pastoral scenes were also created, and sand was sometimes incorporated into the glaze to add texture. Pitchers were produced in a range of sizes from cream pitchers to large milk pitchers, as well as small coffeepots and teapots. Tea sets came a bit later, usually featuring creamers, sugar bowls, and slop bowls.