Gertrud and Otto Natzler’s artistic relationship was highly collaborative: Gertrud created the forms of their earthenware pieces, while Otto formulated and applied the dramatic glazes. The couple’s dignified Teardrop Bottle epitomizes the harmonious synthesis between form and glaze that the Natzlers so often achieved. The brown, smoky gray, and mottled yellow tigereye glaze fuses with the graceful form of the body, which Otto described as “ascend[ing] slowly upward with a slight curve, as if turning onto itself, only to change direction faintly just before ending.”