A. G. Rigo de Righi (Rigo de Righi, A. G.)

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  350 Years of Anglo-American Postal Links: A Short Account
  by A. G. Rigo de Righi
  Hardcover, National Postal Museum, ISBN 0950001821 (0-9500018-2-1)
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  Britain's Pioneer Airmails
  by A. G. Rigo de Righi
  Hardcover, National Postal Museum, ISBN 0950001813 (0-9500018-1-3)
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  Postage Stamps of de la Rue
  by A. G. Rigo de Righi, National Postal Museum Staff
  Hardcover, National Postal Museum, ISBN 0950001864 (0-9500018-6-4)
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  The Stamp of Royalty: British Commemorative Issues for Royal Occasions, 1935-1972
  by A. G. Rigo de Righi, National Postal Museum Staff
  Softcover, National Postal Museum, ISBN 0950001856 (0-9500018-5-6)
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  via
  The Story of the Penny Black and Its Contemporaries
  by A. G. Rigo de Righi, National Postal Museum (Great Britain)
  Hardcover, National Postal Museum, ISBN 0950001872 (0-9500018-7-2)