Of the 15 coins in the set, 10 are the finest graded examples, and two are tied for the finest known, though one of two top pieces is the only example to have received a + designation from NGC.
While, as Andrew wrote, “It was inevitable that a Victorian Proof set would eventually break the half a million barrier,” and the “1839 set is certainly the most prized of all such sets,” it is not the most expensive British Proof set.
That honor remains with the 1937 Edward VIII set that was bought by Ira & Larry Goldberg Coins & Collectibles for £1.35 million ($2.1 million U.S.). One of four sets reported, it is the only 1937 Proof set available in private hands.
To learn about all of the coins in the 1839 set, or the rest of the auction results, visit www.baldwin.co.uk.