Postage stamps

Gambia

Frederick John Melville

The Die Varieties of the Nesbitt Series of United States Envelopes

Victor Maximilian Berthold

Saint Vincent, with notes and publishers' prices

Edward Denny Sir Bacon
Francis John Hamilton Scott Napier

The Adhesive Postage Stamp

Patrick Chalmers

Catalogue of books on philately in the Public Library of the city of Boston

Boston Public Library
Boston Philatelic Society

Baum's Complete Stamp Dealers Directory

Containing a Complete List of All Dealers in the United States, Together with the Principal Ones of Europe, and a List of Philatelic Publications

L. Frank (Lyman Frank) Baum

History of the Postage Stamps of the United States of America

John K. (John Kerr) Tiffany

Canada

Its Postage Stamps and Postal Stationery

Clifton A. (Clifton Armstrong) Howes

The Stamps of Canada

Bertram W. H. (Bertram William Henry) Poole

The Postage Stamp in War

Frederick John Melville