two professional ceramists or claymakers during a process of clay preparation

20s 2429 and apprentice apron argil artisan atelier blackboard blue bowl caucasian ceram ceramic ceramics ceramists clay claymakers claymaking concept couple craft culture decorative during facilities forming group hand handicraft handmade horizontal image jar jug knowledge lump men modelling moulding one or out pitcher pot potter pottering preparation process production profession professional roll shape tables traditional twenties two women working workshop years young