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The most recent, formed by the late Jean Garbett Gressner, a former lieutenant-colonel in the Army Nurse Corps, was offered (with additions) by PBA Galleries of San Francisco on August 26. There was no first edition copy of the book that launched the Oz industry, but attractions included the two books seen here.

Top right, The Emerald City of Oz of 1910, one of Baum's own, in a chipped but rarely seen jacket repeating the cover design, which made $8500 (£4620) and bottom right, The Gnome King of Oz of 1927, one of Ruth Plumly Thompson's contributions to Oz literature, which made $2000 (£1085).