A block of 19th-century Hong Kong postage stamps featuring Queen Victoria's head sold for a record $820,000 at a weekend auction in the former British colony, organisers said Monday.
The set of four olive-coloured stamps was described as "extremely rare" with organisers chalking up their unusual colour - they should have been a brownish-grey tone - to a printing error.
The pre-sale estimate had been as high as $1.5 million, but it was still the highest price ever paid in the southern Chinese territory for a single lot of Hong Kong stamps. They went to an anonymous buyer.
The face value of each of the stamps, which were issued in 1865, was 96 Hong Kong cents (12 US cents at current conversion rates).
The stamp and banknote sale by auction house Spink on Sunday capped off a busy weekend of auctions in Hong Kong, with British composer Andrew Lloyd Webber's wine collection fetching a higher-than-expected $5.6 million at Sotheby's.