Harlekin (a harlequin) series uses a cone shape in its forms and has various decorations. Karneval (carnival) decoration features stylized red flowers and green leaves with red stripes.
A set of a cup and a saucer for hot drinks. Usually used for serving tea, but also hot chocolate or coffee with milk.
This beautiful teacup has a tiny spot of red colour on the edge of the cup (see the additional photo) and the saucer is a bit worn.