This eggcup was registered on 8th November 1955. It is just a sketch rather than a finished product, so I don’t know how it was finally finished.
Duck eggcup by Lohnberg – Reg 877517
The site for everything to know about DURON, Paoli, Nieri and Bacci vintage african black chalkware / gypsum sculptures and figurines made in the 1950s and 1960s
1950s vintage chalkware statues 