1941 Dr. Sun Yat-sen, New York print $2 black and blue, variety center inverted,
deep rich colors and paper of post office freshness, characteristic centering frame
to bottom, lightly hinged, v.f., with 1996 BPA certificate (Chan 508) (SG 595a)
Only one sheet of fifty is believed to have been printed with this error (Cat No. 461a)
Sold by Cherrystone Auctions on 15-16 June 2011 for US$130,000
