1882: British P.O in Siam (Bangkok) 8c orange of Straits Settlements overprinted ”B” with Wmk Crown CC, very fine used by RARE RED CHESSBOARD CANCEL and ”SINGAPORE” cds. This rare cancellation in red was exclusively used from January to March 1883, it is only recorded on two covers (from the Rattakul and Indhusophon collections), the black chessboard cancel was in used in April 1883. A CANCELLATION RARITY OF EARLY SIAM POSTAL HISTORY.