Mexico 1758-Mo MM 4 escudos

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Heritage sale 3010, lot 31121
photo courtesy Heritage Auction Galleries
This specimen was lot 31121 in Heritage sale 3041 (Chicago, August 2015), where it sold for $25,850. The catalog description[1] noted,
"Unique, Previously Unpublished 1758 Mo-MM 4 Escudos. Ferdinand VI gold 4 Escudos 1758 Mo-MM AU50 NGC, Mexico City mint, Handsome for the designation with little actual high-point wear and highly lustrous surfaces free of any distracting contact marks. A presumably unique and previously unpublished specimen, missing in all published references and collections reviewed by the cataloguer. A valid parallel can be established between this piece and the Eliasberg Ferdinand VI 4 Escudos 1755 NR-S AU53 NGC discovery piece (ANR 4/2005, lot 1452 for $103,500) of the same denomination and general type: both specimens are in comparable grade and both are previously unpublished dates of a previously known type. While the Eliasberg coin can be perhaps considered more important in view of it being among the first milled issues of that mint, the present coin belongs to a more popular series. Value on a unique and previously unpublished piece is always difficult to estimate, yet suffice it to say that the cataloguer considers it the most relevant addition to the corpus of Mexican milled Colonial gold coins that has been made in recent years. A most exciting numismatic discovery, destined to be remembered as one of the most important pieces in the entire landmark Rudman collection!

A companion piece 2 Escudos 1758 Mo-MM also exists. The only piece confirmed by the cataloguer of that excessively rare coin is plated as No. 1449 in the work Catalogo de la coleccion numismatica Emilio Carles Tolra (Barcelona, 1936). From The Rudman Collection of Mexican Coins."

This type was struck 1757 and 1759 in Mexico City and is the rarest of the three types of two escudos of Ferdinand VI. No one, two or four escudos is listed for 1758 in the SCWC; this specimen should have realized more.

Reported Mintage: unknown.

Specification: 13.53 g, .917 fine gold, .399 troy oz AGW.

Catalog reference: Cayón-10830, KM 139 (unlisted date), cf. Cal-Tipo 36 (date unlisted).


  • Cayón, Adolfo, Clemente Cayón and Juan Cayón, Las Monedas Españolas, del Tremis al Euro: del 411 a Nuestros Dias, 2 volumes, Madrid: Cayón-Jano S.L., 2005.
  • Calicó, Xavier, Numismática Española: Catálogo General con Precios de Todas las Monedas Españolas Acuñadas desde Los Reyes Católicos Hasta Juan Carlos I, 1474 a 2001, Barcelona: Aureo & Calicó, 2008.
  • Friedberg, Arthur L. and Ira S. Friedberg, Gold Coins of the World, From Ancient Times to the Present, 7th ed., Clifton, NJ: Coin and Currency Institute, 2003.
  • Michael, Thomas, Standard Catalog of World Coins, 1701-1800, 7th ed., Iola, WI: Krause Publications, 2016.
  • [1]Bierrenbach, Cristiano, Warren Tucker and David Michaels, Heritage World & Ancient Coins Auction 3041, featuring the Eric Beckman Collection of Canadian Coins, the Kaiser Collection of German Gold Coins and the Rudman Collection of Mexican Coins, Part I, Dallas, TX: Heritage Auction Galleries, 2015.

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