She is a 1964 Olivetti Lettera 32. I found her in the dying minutes of an eBay auction in December 2010 after an old Imperial I was bidding on went over three hundred dollars and I gave up and made a random search for "typewriters ending soon."
As it turns out, the Lettera 32 was the Toyota Camry of sixties typewriters and there are enough still in use that they continue to manufacture the ribbon. I found the instruction manual online.
