Yahrzeit Cup (1964), then Gertrud and Otto working in their summer studio at the Brandeis Institute in Santa Susana, California, where they spent the summers of 1956 to 1960 as artists-in-residence. Photo by Lotte Nossaman. Then then an earthenware bowl (1955).
Over four decades of collaboration, Gertrud threw 25,000+ pots. Otto glazed and fired them, developing 2,000+ complimentary glazes. They were both self-taught.