Bath dolls (bath children) also called "Nacktfrösche" or "Frozen Charlies", were cast between 1860 and 1910 from glazed porcelain (white), or biscuit porcelain (pink) in one piece and manufactured in different sizes.
Often they were produced with angled arms, closed fists, painted eyes and mouth, as well as the modelled hair black, blond, rarely brown. They were produced in Sonneberg and its surroundings. These dolls were sold mainly in the seaside resorts on the North Sea and Baltic Sea coasts. In Northern Germany they were often given to the bride. They were also given away at tea or coffee parties, sometimes dressed as chimney sweeps. The doll mothers loved them because the hollow swimming dolls could be bathed and washed (the perfect exercise for the future mother role).