SINCONA British Collection - Teil 1
Los 870

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| Startpreis | 3’500 CHF |
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Dieses Los steht nicht mehr zum Verkauf.
Victoria, 1837-1901. Pattern 1/2 Sovereign 1869, London. Palladium-Hydrogenium. Young head of Victoria left. Rv. PALLADIUM - HYDROGENIUM * 1869 * around GRAHAM [for Thomas Graham, Master of the Royal Mint]. Reeded edge. 2.30 g. WR -. VPT-455. Äusserst selten, nur 4 Exemplare bekannt / Extremely rare, only 4 pieces known. NGC PF64 CAMEO.
Details
In the last years four specimen were auctioned. This piece is number (1) of the below list with the fantastic Montagu provenance dated back to 1890.
(1) Auction Spink 6018, London, September 2006, lot 105; Murdoch Collection, Part 3, Sotheby, Wilkinson & Hodge, London, March 14-19, 1904, lot 542A; Montagu Collection, Volume II, Spink, October 1890, lot 1829.
(2) Auction DNW 88-89, London September 2010, lot 1800; King Farouk Collection, Sotheby Auction (Cairo), 24 February-6 March 1954, lot 1501; SNC April 2002 (MS 2562).
(3) Auction Heritage 3061, New York, January 2018, lot 32311.
(4) Auction Heritage 3044, New York, January 2016, lot 31277.
Thomas Graham, master of the Mint from 1855 until his death in 1869, was an eminent chemist, renowned for his pioneering work on dialysis and the diffusion of gases (Grahams Law). His interest in metallurgy prompted the striking of coins in various metals and establishing their reaction to gases, including the absorption of hydrogen gas by palladium. According to his calculations this piece is said to contain 900 times its volume in hydrogen.
Finest certified by NGC.