, cancelled by very fine strike of the red Cross, the reverse with Congleton double-arc datestamp of 28 October 1840; fine, clean and unusual. Photo" /> cover A78, addressed to the Stamp Office at Chester and inscribed<I> "O.H.M.S."</I>, cancelled by very fine strike of the red Cross, the reverse with Congleton double-arc datestamp of 28 October 1840; fine, clean and unusual. Photo | Christie's