Summa Prima 20 adding machine Designer (Person) Nizzoli, Marcello Manufacturer Olivetti Date 1960 - 1969 (circa)
Spoonkler closure, 1 of 2 Designer (Person) Neath, John Manufacturer RPC Manufactured for Bart Date 2013
Spoonkler closure, 2 of 2 Designer (Person) Neath, John Manufacturer RPC Manufactured for Bart Date 2013