First cast by Stempel as Saphir in 1953. Named Sapphire in English-speaking countries and Iniciales de Zafiro in Spanish.
Festliche Ziffern (“festive figures”, 1950) is a related series consisting of numerals, period and dash only, with slightly different forms and a more delicate decoration, in three levels of detailing. Uses of Festliche Ziffern are included under Saphir.