to London showing partially fine framed "PATNA/PT:PD" (HG 2, rare) in magenta and, on reverse, oval-framed "Bengal/G.P.O./POST PAID" d.s. (HG SD2, small part cut away at seal); some light staining affecting both handstamps. Photo " /> <I> "Per Lord Duncan"</I> to London showing partially fine framed "PATNA/PT:PD" (HG 2, rare) in magenta and, on reverse, oval-framed "Bengal/G.P.O./POST PAID" d.s. (HG SD2, small part cut away at seal); some light staining affecting both handstamps. Photo | Christie's