THE POSTAL SERVICE OF SIERRA LEONE, P.O. Beale, 1988 (hardback)
The Postal Service of Sierra Leone - Its History, Stamps and Stationery Until 1961, by P.O. Beale. It features very comprehensive coverage of all aspects of the subject in a handsome and finely produced volume, published by the Royal Philatelic Society. 256pp, hardcover with dustjacket in excellent condition. Size: 8½" x 11¾", and a heavy item!
Four color plates included. Awarded Gold at PhiliTex '92.