Modifiche

According to Letizia Iacopini the company changed its name and location after the WWII, becoming the ''Metron Società Anonima Officine Piemontesi Penne Stilografiche Williamson'', and moving in Via Madama Cristina 132, Turin. After war production were some interesting [[Parker 51]] imitation. These pens were made in ringed celluloid in a wide range of colors, with button filler and metal cap.

According to Letizia Iacopini the company changed its name and location after the WWII, becoming the ''"Metron Società Anonima Officine Piemontesi Penne Stilografiche Williamson"'', and moving in Via Madama Cristina 132, Turin; to this company belongs to the re-registration of the trademark done in 1943 ({{Marchio|69052}}). After war production were some interesting [[Parker 51]] imitation. These pens were made in ringed celluloid in a wide range of colors, with button filler and metal cap.