and showing, on reverse, superb strikes of the circular "PONDICHERRY" with star at centre and with "POST PAID" alongside; very rare. Photo" /> cover 1818 (21 Aug.) entire letter from Pondicherry to Karikal, marked<I> "A12"</I> and showing, on reverse, superb strikes of the circular "PONDICHERRY" with star at centre and with "POST PAID" alongside; very rare. Photo | Christie's