Axel Salto joined Royal Copenhagen in 1933 and became one of the factory’s most skilled modellers. He developed three overtly organic series of vessels – titled Fluted, Budding and Sprouting – and also worked in the manufacturer’s studio, producing a number of original works. Salto was known for the formal, decorative quality of his stonewares. The rich glaze on this piece was developed in the 1930s under the direction of Royal Copenhagen’s chemical engineer Hans A. Madslund. Named ‘solfatara’ for its metallic oxide, the glaze could turn bright yellow or black, or mottled variations in between, depending upon the kiln conditions.