Bolivia 1790-PTS PR 8 escudos
"1790/89 PR 8 escudos. Potosi mint. EF details (NCS). Armored bust of Carlos III to right, Carlos IV titles around, date below/type as above. Frosty and lustrous medium yellow gold, well-hidden scratches atop obverse and among the reverse devices. A high grade example of this scarce transitional type. This date called 'muy rara' (very rare) in Calico. From the John H. Clapp Collection; Clapp estate to Louis E. Eliasberg, Sr., 1942. Plated in Wayte Raymond's Spanish American Gold Coins, 1936; and in the serial published in Coin Collector's Journal, October 1934, Vol. 1, #7, p. 152."
While silver coins from Bolivia exist in vast quantities, gold from Bolivia is scarce. For the colonial period, Colombia may be regarded as the most prolific issuer, followed by Mexico, followed by Peru. Bolivia, Chile and Guatemala are minor sources. This transitional type was minted 1789-90 and is scarce, tho less so than the four escudos.
Recorded mintage: unknown.
Specification: 27.07 g, .875 fine gold, .761 troy oz AGW; this specimen: 26.92 grams, 36.30 mm.
Catalog reference: KM 68, Fr-6, Calico Onza-1080.
-  Kraljevich, John, John Pack, Elizabeth O. Piper and Frank Van Valen, The Louis E. Eliasberg, Sr. Collection of World Gold Coins and Medals, Wolfboro, NH: American Numismatic Rarities, 2005.
- 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.
- Krause, Chester L., and Colin R. Bruce II, Standard Catalog of World Coins: Spain, Portugal and the New World, Iola, WI: Krause Publications, 2002.