Welcome soev. We have very few members from Spain. Your English ifs far better than my Spanish.
You have a model 66.since it was made in 1904 it would not have a mounting boss under the hand wheel. It would be very difficult to add an electric motor and nearly impossible to add a hand crank. That my be why it got put aside after the owners got electricity..
Hexagon is a puzzle. Maybe a dealer? 66s were made for decades, so there are parts around. Many of us here use them.
I do not know cabinets by numbers, but others here will.
We love to see pictures but hey need to be pretty small.