LITERATUR
Krause I./ Clifford Mishler: Standard Catalog of World Coins. Deluxe ANA Centennial Edition in 2 Bänden in Schuber. ANA 1991. (winziger Riß auf der Rückseite des Schubers dazu Standard Catalog of World Coins. Platinum and Palladium issues included. Detailed date and minting lists. 1601 to present. 4. Auflage, Ioala o.J. neuwertig