I do believe that auctioneers are professional, but how come even they could have underestimated the value of the calligraphy work for that much? Or was it simply overpriced?
Dating back to 2004 when his wooden street art was first put up for auction, the estimated price was HK$2440-3900 and it ended up sold for more than a double, that is about HK$8,600. A lot of people were amazed at that time but it was just completely incomparable with the latest auction held this Monday. The estimated price was HK$20,000-30,000 but it turned out to be sold for nearly six times more than its estimated price, that is HK$170,000.
Tsang's work has been gaining international recognition since his appearance at the prestigious 50th annual Venice Biennale International Art Exhibition in 2003, and the continuous production of fashion and all means of design inspired by the calligraphy has certainly boosted his fame. However, this boom is not only a result of the last success but also due to his death, which consequently makes his work become "limited edition".
Artwork, especially graffiti, composing of Chinese characters is really rare, and I guess a lot of collectors are seeing good fortune in Tsang's work.