8 Antique Lusterware Small Plates - Handpainted Japan - $35 (Baltimore)

A set of 8 small lusterware plates.
They're sort of oval-shaped, and each has a raised circle where presumably a coffee cup would sit.
(I don't have the cups -- just the plates.
) Each plate is 6" X 7.
5" at its widest points.
All are in very good shape.
White areas which show on the rims in some photos aren't chips: they're simply lighter areas which weren't given the full darker greenish glaze.
Please see photo of the mark on the back of each piece.
I don't know what company made these.
Certainly, I think, early 20th century.
$35 for all.