Welcome to the forum - and you have a beautiful and rare Doll.
This is I believe the biggest one of the series - 2 Cylinders and
5 hole stand!
I do not know the exact value - but it is more than 1... Dollars.
From the picture I think it may run if it is filled with Water and
oiled all bearings - but you should be careful.
Greetings, Arnold
Spares can be found on ebay