A first edition of Quag Keep, along with a first paperback edition of Huon of the Horn join the collection. Both feature covers by Jack Gaughan. A full jacket scan of Quag Keep is available in the Cover Artists: Jack Gaughan section.
In addition, I've added a full jacket scan of The Jargoon Pard in the Cover Artists: Jack Gaughan section. Also, added a link to the Andre Norton Forum at SF-Fandom, a link to Ace Doubles (& Singles) Image Library, since so many Norton books were published by Ace, and a link to a Norton Bibliography available through Amazon.