Tutein Nolthenius was an enthusiast amateur ceramicist, who had his own kiln at home, where he would produce ceramics influenced by Asian examples. He would also support and encourage Bart van der Leck in experimenting with new methods and materials.
In July 1934 Bart van der Leck wrote to Bremmer: "From Nolthenius I received several necessities for the pottery, for which i am very grateful. He is so amazingly kind! We discussed that I would not have had the opportunity to do these things with any other potter. I must add, this is surely due to his kind cooperation. Now I have to do several tests and I need some more materials before i can make something, but that will come" (C. Hilhorst, Vriendschap op afstand. De correspondentie tussen Bart van der Leck en H.P. Bremmer, Bussum 1999, p. 166).