I think it was made in the late 1960s. Olivetti still supported the model when we got them in 1978–9. It was pretty high tech for a mechanical, 110 baud teletype. It had a full RS-232 interface and a fair amount of electronics, perhaps to power it up and down when it received new data.
It was big change from the 60 words per minute Baudot printer I was bringing up. If I remember correctly that one had a 45.45 baud rate, 1.42 stop bits and a 100V, 60mA current loop interface which could probably work over a line running across the next couple time zones.