Apparently, the serial numbers listed on the Typewriter Database are for January 1st of each year. That means that this Olivetti is a 1956 model, not a 1957 model. Either way, it was most likely sold by The Typewriter Clinic.
The carrying case
This dust cover is from a British Olivetti (coming soon)
The round box contains:
brushes for cleaning the Olivetti
This is the manual:
|Cover of the 1956 Seattle Telephone Directory (Courtesy of the Seattle Public Library)|
|The only Olivetti dealer listed.|