Here is a marvellous video from the website of Zuber & Cie showing wallpaper manufacture according to methods in use the end of the 18th century. Founded in 1792 at Rixheim in Alsace, Zuber is famous for its panoramic wallpapers. The company's vast archive of samples forms the basis of the Musée du papier peint which was set up in 1982. In addition they possess no less than 150,000 original wooden blocks from 1797-1830, which are still regularly used for the manufacture of fine papers.
Zuber are still in business and they really don't want images of their papers reproduced, so I won't; there are loads on their website ( http://www.zuber.fr). There is also a "Jean Zuber" Facebook page