Resources found in the Smithsonian National Postal Museum Library are:

  • Gibbons' Priced Catalog 1939, Part I: Stamps of the British Empire, also Egypt and Iraq. London, England: Stanley Gibbons Ltd., 1939.
  • Hutson, G.J. The Stamps of New South Wales. London, England: Royal Philatelic Society; and Aberdeen, Scotland: The University Press, 1960.

Other Resources:

  • “New South Wales.” Encyclopædia Britannica. Encyclopædia Britannica Online Academic Edition. Encyclopædia Britannica Inc., 2012. Web. 06 Jul. 2012.
  • Kloetzel, James E., ed., et al. Scott 2011 Standard Postage Stamp Catalogue, Volume 1: Countries of the World A-B. Sidney, OH: Scott Publishing Co., 2010.