Antique Olympia MOD 8 Typewriter

I believe it was made in the 1930's.
I don't know too much about typewriters but this one seems to have a lot of levers and keys.
I'm not sure if everything works pefectly as I'm not sure how it all should work but everything seems to move freely.
The carriage moves along when you press the keys and the ribbon rises also.
It is in overall quite good condition considering it's age.
It does have some surface corrosion and paint chips in areas but the photos do make it look rustier than it actually is.
The bevelled glass windows on the sides are both in good condition and so too are the 4 rubber feet.
This typewriter is very heavy (about 17kg) and the price includes the courier cost.
Please see all the photos and questions please ask.