Resources found in the Smithsonian National Postal Museum Library are:
- Bargholtz, P. “Peru- The 1858 Medio Peso Error of Colour: An Inventory.” A Mainsheet Special Edition #1, Brian Moorhouse. 2001.
- Edition D’Or VIII – Peru: The Klaus Eitner Collection. Corinphila Auktionen AG. 2007. Hall, T.W. “The 1858 Issue of Peru.” London Philatelist. (1931) Vol. XXXX: 147-151.
- Linz, Arthur. “The Early Postal History of Peru.”The Stamp Specialist – Coral Book (1945) 69 – 78.
- Moll, Herbert H. Historia Postal y Filatelica del Peru. Lima, Peru: SA. A.B.C., 1983.
Other Resources:
- Bacon. E.D. “The Stamps of the Pacific Steamship Navigation Company.” London Philatelist. (1928), Vol. XXXVII: 103-107 and 146-157.
- Colareta, Jose C. – Prefilatelia Peru. Lima, Peru: Editora De Servicios Offset E.I.R.L. 1979 and Prefilatelia Peru Primer Suplemento, 1981
- Hall, T.W. and Fulcher, L.W. “The 1 Dinero of Peru 1860-1862.” London Philatelist (1923) Vol. XXXII; 78-82, 104-108 and 128-132.
- Lamy, Georges and Rinck, Jacques-Andre Rinck – Perou Obliterations Postales. Lyon, France: Audin Et Cie, 1964.
- Herbert H. Moll, Catalogo de los Sellos de Correos y Telegrafos del Peru, Angelo Puppo (ed.), (Lima: Ediciones Filatelico Moll, 1957).
- Herbert H. Moll, Priebas y Ensayos del Peru, Lima, Peru: SA. A.B.C., 1972.
- The Enrique M. de Bustamante Court of Honour Collection of Peru. David Feldman SA, November 16-21, 1997.
- The Islander Collection, Part Five: Peru. Robert A. Siegel Auction Galleries, Inc., Sale 957, June 5-6, 2008
