- Lewis, Peter
- The island stamps that are worth a pretty penny
- Daily Mail
- Description of Work
- review of Morgan, Helen, Blue Mauritius: The Hunt for the World's Most Valuable Stamps (2006)
- 11 August 2006
Helen Morgan's book traces in great detail the stories of the 26 known 'Post Office' stamps in existence in a scholarly but very readable fashion. She brings to life the collectors who hunted their quarry and the letters which the stamps adorned.
- Morgan, Helen, Blue Mauritius: The Hunt for the World's Most Valuable Stamps, Atlantic Books, London, 2006. [ Details... ]