Rewrite the following passage, restoring the appropriate punctuation marks.
reproducing beautiful historic wallpapers calls for the finesse of a master craftsman. establishing a particular papers full pattern is no childs play the expert may have to fit together the fragments of surviving samples which he may find in museums in the basement of old houses and even under layers of other wallpapers. he manages to determine the shade of the colours in many ways he runs chemical tests or carefully matches a fragment to a fresh original in a museum. as a final precaution he makes a “backlight” examination for details of this brief history refer to john oslos 19th century american history especially the chapter entitled the wallpaper frenzy in early american history. the author stated there are more details i will add in the next edition.