Hi Terry, I like your post. A couple of the pieces are a bit small to help people with identification. The shell edge also had an earlier version, it was first used about 1790 and was made of a light white material. That was called "creamware". The blue shell edge is much more akin with modern ceramics and the picture posted is correct as mid 19th century. Here are a few pieces showing more detail.
First, 16th century Rhenish (German) stoneware, a small tankard.
View attachment 1533202 Second, American made slipware on a light greyish body ca 1760 ish,
a half pint sized bowl.
View attachment 1533203 Third American made redware ca 1750-1760 a really early piece. I got this one from an estate auction in PA about 30 years ago. One of my best finds ever.
View attachment 1533204 Next, Staffordshire (England) slipware, ca 1720-1770 more or less, a small dish.
View attachment 1533207 Next American 18th century stoneware, probably Pennsylvania (best guess)
View attachment 1533208 Next a mid 18th century Staffordshire salt glazed plate
View attachment 1533209 And a nice Whieldon plate ca 1760 made in England
View attachment 1533210 and lastly a Delft plate, mid 18th century. Not sure of country of origin, but probably England mimicking the Chinese imports of the time. Enjoy.
View attachment 1533211