Tristan Da Cunha: Key Highlights from the Collection formed by Dr. Gene Scott (specialized stamp auction catalog), Daniel F. Kelleher Auctions, sale #629, April 21, 2012, illustrated in color, 124 lots, 31 pages, softbound, in fine condition.  This catalog is a great reference for your philatelic library.  We will send to any U.S. destination by USPS Media Mail.