Sale Catalog - David G. Phillips Co., Inc. - United States & Foreign Covers & Postal History - Public Sale No. 117, June 20, 2006 (Including Stampless, Illustrated Ad Covers, Maritime Mail, Civil War, Autograph and Free Franks, Historical Letters & Documents - Ephemera)
Transatlantic stampless mail to and from British North America: From the collection of J.C. Arnell, FRPSC (Handbook / Transatlantic Study Group, British North America Philatelic Society)
Transatlantic stampless mail to and from British North America: Showing manuscript and handstruck rate markings (Hennok's series of postal history collections)