I'm sure you're all familiar with Bradbury & Bradbury Art Wallpapers; they're the leading name in Victorian and Arts & Crafts wall and ceiling papers (along with Art Deco and Modernist ones as well). They're part of Artistic License a guild of "professional artisans in the San Francisco Bay Area, whose work encompasses architectural restoration, renovation, and newly-interpreted period design."
Recently, Artist License posted a time-lapse video of an installation of an entire room's worth of ornate Bradbury papers (augmented with stenciling). It's fascinating to watch how all the borders and corners are cut and applied, and then see the stenciling performed and ceiling medallion affixed. For anyone who has ever wondered how it's done, this is a great way to observe the process.
The room was designed by my friend and colleague Paul Duchscherer; the noted interior designer and author, you've undoubtedly seen his bungalow books on many a shelf.