Ultra-Rarities Sourced
Our two areas of deepest expertise are the Latin American republics and Asian imperial coinage. In the former, we handle the full arc from the earliest post-independence issues of the 1820s through the late 19th-century republic series of Guatemala, El Salvador, Honduras, Colombia, Ecuador, Chile and Peru, with a particular focus on high-grade and condition-rare examples that seldom reach the market. In Asia, we are active buyers and sellers of Chinese provincial dragon dollars, Republic-era silver, and the finer Japanese and Korean issues. We also handle Spanish colonial material, and have placed significant pieces with specialist collectors worldwide.
The list below reflects pieces we have sourced for clients over the years; many have fewer than five recorded auction appearances.
Bolivia
- Contemporary "Royal" Presentation Cob 8 Reales 1683-P, Charles II, PCGS VF Details Sold, Stack's Bowers 2025
- 2 Reales 1693, Feversham Wreck, ex Christie's 1989 with original ticket Sold (private) 2025
Chile
- 1777 2 Reales Sold, Stack's Bowers 2024
- 1859/8 ½ Décimo Sold (private) 2025
- 1866 1 Peso Contemporary Forgery ex Christensen Sold (private) 2025
- Copper Peso Pattern 1868-So PCGS SPECIMEN-63 Brown Sold, Stack's Bowers 2026
- 8 Reales 1808-So FJ PCGS EF Details Sold, Stack's Bowers 2026
Colombia
- 1919 Boyacá Centenario Medal Sold (private) 2022
- 1823 4 Reales Sold (private)
- 1823 2 Reales Sold (private)
- 1825 1 Real Sold (private)
- 1879 50 Centavos PCGS XF40 Sold (private)
Costa Rica
- 1831 CR-F 1 Real, Central American Republic Sold (private) 2025
Ecuador
- 1850 2 Reales GJ PCGS AU50, Top Pop 1/0 Sold (private) 2025
El Salvador
- 1828 4 Reales NGC VF Details Sold (private) 2025
- 1892 Proof Set in Original Box Sold (private) 2025
Georgia (Caucasus)
- Bisti (2 Kopeks) 1805, Tbilisi Mint, Alexander I, PCGS AU-53 Sold, Stack's Bowers 2026
Guatemala
- 1739 1 Real Cob Sold (private) 2024
- 1769 ½ Real Sold (private) 2023
- 1779 1 Real Sold (private) x2, 2023 and 2024
- 8 Reales 1768-G P, Charles III, PCGS EF Details Sold, Stack's Bowers 2025
- c.1920 2 Pesos in Porcelain, Double-thickness Piedfort Sold (private) 2025
- 1829 1 Real NGC VF25 Sold (private) 2025
- 1925 1 Quetzal, AU Details Sold (private) 2024
- 1925 1 Quetzal, AU53 Sold (private) 2025
Honduras
- 1823-PY Real NGC VF Details Sold, Stack's Bowers 2026
- 1886 QDR 1 Peso PCGS AU55 Sold (private) 2026
Mexico
- Cob 4 Reales ND (1542–48), Carlos & Johanna, Mexico City, PCGS EF Details Sold, Stack's Bowers 2026
- Cob 4 Reales ND (1572–89), Philip II, Mexico City, PCGS EF-45 Sold, Stack's Bowers 2026
- Cob 8 Reales ND (1599–1607), 27.4g Sold (private) 2025
- ½ Real, Carlos & Johanna, PCGS VF Detail Sold (private) 2025
- Xalapa (Veracruz) 1808 2 Reales Proclamation, Grove F-76 Sold (private) 2023
- Toluca 1809 Ferdinand VII Silver Proclamation Medal, Hr-85 Sold (private) 2022
- 1815-CaRP Chihuahua 8 Reales, War of Independence, PCGS VG10 Sold (private) 2025
- 1814 2 Reales, Tlalpujahua Mint (War of Independence), VF–XF Available, please enquire
- 1816-Ca RP Chihuahua 8 Reales, War of Independence, Ferdinand VII, PCGS VF-35 Sold, Stack's Bowers 2026
- 1822 8 Reales, Iturbide, UNC Consigned to Stack's Bowers 2025
- 1824-Mo JM "Hookneck" 8 Reales PCGS MS-61 Sold, Stack's Bowers 2026
- 1833-Ca MR Chihuahua 8 Reales PCGS MS-61 Sold, Stack's Bowers 2026
- 1848 MoGC 4 Escudos, Gold Sold (private) 2025
Panama
- 1884 G*A Colón 5 Centavos Token Sold (private) 2025
- 1935 Universidad Medal, by the Mint of Lima Sold (private) 2025
Peru
- Cob 4 Reales 1577-P Lima, Philip II, PCGS AU-53 Sold, Stack's Bowers 2026
- 8 Reales 1824 with Royalist Counterstamp on 1823 Original Sold (private) 2025
Philippines
- 1835 4 Quartos Sold (private) 2024
Portuguese India
- Silver Rupia Prova (Pattern) 1935, Lisbon Mint, NGC MS-65 Sold, Stack's Bowers 2025
United States
- 1893-O Morgan Dollar, VF Sold (private) 2025
- 1893-CC Morgan Dollar, VF Sold (private) 2024
Ancient & Byzantine
- Byzantine Solidus, Constantine IV Sold (private) 2025
Literature & Publications
- Danske Mynter, 8 vols (1791, 1st ed.): ex libris Mark Salton and J. Schulman; perfect condition in modern binding Sold (private) 2025
- Norges Mynter i Middelalderen, Tekst & Tavler, 2 vols (Schive, 1865) Sold (private) 2025
- Møntvæsenet 1625-1670 (Wilcke, 1926); Kurantmønten 1726-1788 (Wilcke, 1927); Dale Mark Og Kroner 1481-1914 (Wilcke, 1931): all rebound by Christensen, J. Schulman stamps Sold (private) 2025
- Danmarks Og Norges Mønter (Hede, 1971): signed by the author with personal dedication to Henry and Bill Christensen Sold (private) 2025
- Corpus Nummorum Romanorum, 11 vols (Banti & Simonetti, 1975): Vol. I dedicated to Henry Christensen and signed by both authors, dated 1976; unread condition throughout Sold (private) 2025
- Catalogue of Greek Coins (Brett, 1955): Christensen's personal office stamp to front board; contains a cache of his handwritten research notes on loose sheets Sold (private) 2025
- The Tetradrachms of Roman Egypt (Curtis, 1969): Christensen's handwritten notes on Greek coinage laid in Sold (private) 2025
- Catalogue of Coins of the Shahs of Persia (Poole, 1887) Sold (private) 2025
- Van Loon, Virgil Brand copy, 1st ed.; with Numismatique Glyptique and Cunobelin Essay Sold (private) 2025
- Henry Christensen Ancient Books: group of rare ancients reference works from Christensen's personal library Sold (private) 2025
- Dansco Cuba Type Album Sold (private) 2024
- Dansco Guatemala Type Album Sold (private) 2024