Here’s a great Wizard of Oz reference: Index to the Baum Bugle by Frederick Otto, published by the Int’l Wizard of Oz Club in 1986. The Baum Bugle is a Wizard of Oz Fanzine/journal with many useful articles. This softcover index is 48 pages and covers Bugle issues from 1957-1984. Very detailed and in very good condition with light age toning and wear. Hard to find.