We know that Warth worked on copper engravings and stoneware models for Villeroy & Boch, Mettlach, from 1854 to 1892. During this period, while he was incidentally not a resident of Mettlach, he created many well-known steins.

In addition to this considerable output of steins, one finds Warth’s signature on quite a number of plates and plaques. His typical signature (“C. Warth”) is well known to stoneware collectors, and Warth’s style is unmistakable. Always clear in his design and with astonishing strength in statement in his scenes, Warth breathes life into his characters, forms and landscapes.