Harrishs - I am seriously envious.
There is precious little on the internet about these machines, but it was made in the Basque country, Elgoibar is between Bilbao and San Sebastian, a beautiful part of Spain.
Want to send me a PM? I can do you a translation of the parts book if you send me a copy. Is it just a parts book and not a manual?
How did it end up in the States? There has to be a story behind it. When I first visited that part of Spain, in 1968, there were quite a few US servicemen and their families there. There was a hilarious little 3 year old called Tammy who would trot around in her vest knickers and cowboy boots.