Diskussion:Underwood 200
According with Torchio (Ufficio d'epoca N. 50/2011) Olivetti introduced Summa Prima 20 in 1960. Capacity 10x11 and two operations. Then, in 1961, three reduced versions was produced, having the same restyled case:
- Summa Simplex: Capacity 7x8, no direct subtraction, ill fated
- Underwood 200 and Antares 2000: Capacity 7x8 and direct subtraction
Please note that in these years Antares and Underwood was owned by Olivetti. Celli 09:46, 12. Set 2011 (CEST)