antique blue & white transferware china, 1800s vintage butter pat plates w/ wildflowers

Set of four unmarked transferware china butter pats, tiny plates just 3" in diameter.

These look like English Staffordshire to us, ironstone or semi-porcelain, probably 1880 or 1890s. We love the beautiful floral pattern in dark blue against the white!

These are spotted with discoloration (some more than others) and all have crazing. None have chips or cracks.