to Dum Dum showing, on reverse across join, framed "AGRA" (HG 7) in red and the sole example recorded in this colour, Calcutta Ship Letter Bearing and Dum Dum Bearing d.s. Photo " /> <I> "By overland mail via Southampton"</I> to Dum Dum showing, on reverse across join, framed "AGRA" (HG 7) in red and the sole example recorded in this colour, Calcutta Ship Letter Bearing and Dum Dum Bearing d.s. Photo | Christie's