Early 1900s vintage German porcelain demitasse coffee cups, a set of eight, 2 1/8" tall. We have no saucers for these, sorry!
The mark on the reverse is C.T. Altwasser - Silesia - Germany, and the plain wedding band trim we believe is copper, not gold or red gold, as it's showing some tarnishing. The china looks excellent overall, none chips, cracks, or staining.