427. Colombia, 1973 Guiller mo Valencia Centennial Commemorative set of 1,000, 1,500 and 2,000 pesos proofs (3 coins) in original custom case. Sedwick-72 through 74. Restrepo-p. 289. KM-254, 256 and 257. Three perfect Proofs (not cameo), issued to commemorate the centennial of the birth of the Colombian poet Guillermo Valencia, with POPAYAN in fields but struck by the Royal Canadian Mint, valued in Sedwick at 15% over spot price in original case. Total weight of 25.8 grams of .900 gold. Estimate: $1,000$1,250.
428. Colombia, 1973 Bank of the Republic 50th Anniversary Commemorative (“Urn”) 1,500 pesos proof in original custom case. Sedwick-75. Restrepo-p. 290. KM-255. Problem-free Proof (not cameo), issued to commemorate the 50th anniversary of the Bank of the Republic, the home of the famous Gold Museum in which resides the pre-Columbian urn that appears on the obverse, struck by the Royal Canadian Mint, valued in Sedwick at 12% over the spot price in original case. Weight of 19.1 grams of .900 gold. Estimate: $750-$950.
429. Colombia, 1975 Santa Mar ta 450th Anniversar y 430. Colombia, 1975 Medellín Tricentennial Commemorative Commemorative set of 1,000 and 2,000 pesos proofs (2 coins) in original custom cases. Sedwick-76 and 77. Restrepo-p. 290. KM-259 and 261. Two perfect cameo Proofs, issued to commemorate the 450th anniversary of the founding of the coastal city of Santa Marta in 1525, minted by Valcambi Chiasso of Switzerland and valued in Sedwick at 20% over the spot price in original case. Total weight of 12.9 grams of .900 gold. Estimate: $500-$650.
set of 1,000 and 2,000 pesos proofs (2 coins) in original custom case. Sedwick-78 and 79. Restrepo-p. 290. KM-260 and 262. Two perfect cameo Proofs, the only square coins ever made for Colombia, issued to commemorate the tricentennial of the founding of the city of Medellín, minted by Valcambi Chiasso of Switzerland and valued in Sedwick at 15% over the spot price in original case. Total weight of 12.9 grams of .900 gold. Estimate: $500-$650.
431. Colombia, 1980 Simón Bolívar Sesquicentennial Commemorative set of 15,000 (2) and 30,000 pesos proofs (3 coins) in original custom case. Sedwick-81 through 83. Restrepo-p. 291. KM-276, 278 and 279. Three perfect cameo Proofs, issued to commemorate the sesquicentennial of the death of Simón Bolívar in 1830. Per Sedwick: “The mintage of only 500 of each for the smaller coins is lower than the 1,000 mintage of the larger coin, a reversal of the normal marketing procedure. Also, only 200 cases were produced, the rest of the coins having been sold unembellished. The demand for this set has always been substantial (many South Americans collect any coin referring to Bolívar) and it is seldom available, even at double the price of its gold content.” Total weight of 69.12 grams of .900 gold. Estimate: $3,000-up. 108