If you're lucky enough to be able to visit the Metropolitan Museum of Art in NYC you can see this in person:
Extravagant Inventions
The Princely Furniture of the Roentgens
But this is almost as good, and you save the airfare!
http://www.metmuseum.org/en/exhibitions/listings/2012/roentgen?vid=e1204a6e-2697-4b57-9083-48183ba0cf50
Click around and find the videos, they are great
Enjoy
Jay
Extravagant Inventions
The Princely Furniture of the Roentgens
But this is almost as good, and you save the airfare!
http://www.metmuseum.org/en/exhibitions/listings/2012/roentgen?vid=e1204a6e-2697-4b57-9083-48183ba0cf50
Click around and find the videos, they are great
Enjoy
Jay