Recently, I’ve been scanning a number of dust jackets for Mark Terry at Facsimile Dust Jackets. He offers a large line of dust jacket reproductions for numerous books, including the Oz titles. I was able, along with several other collectors, to help fill the gaps so that an entire run of first state Oz jackets are now available.
Although the metallic inks are missing from Emerald City, Road, and Dorothy and the Wizard, the jackets are beautifully restored and very presentable. There are some very rare jackets represented, which are fun to see, and there are other non-Oz Baum and Thompson titles available - on the left is an example of an original Sky Island together with the reproduction.
While a facsimile jacket doesn't add significant value to a book, the way an original jacket does, it does have decorative value. It's particularly nice in cases where the jacket has imagery seen nowhere else in the book. The jackets are clearly marked as facsimiles on the front flaps, and if you wish, it can be a fun way to spruce up a collection. I used a set of Baum firsts to dress up the set of Bradford Exchange facsimiles that I own.