This piece was registered on the 3rd March 1955 and is by Lohnberg. It looks like it continues to be enamelled ceramic and is prior to the registration of the Duron pieces
Couple kissing by Lohnberg – Reg 876382

Duron, Nieri, Paoli.
This piece was registered on the 3rd March 1955 and is by Lohnberg. It looks like it continues to be enamelled ceramic and is prior to the registration of the Duron pieces