Okay, that appears to be "feather edged" creamware with a Whieldon type glaze. I'd date it 1770-1790. Cool stuff for sure. When I was in the archaeology club we used to ooh and aah over a tiny fragment of it.
I can't quite tell but the white piece is probably ca 1790 pearlware. It also could be a little earlier. The earlier stuff was lighter weight than the later stuff.