cover A166, used from London to Newbury, showing red London Paid 'tombstone' of 5 May 1840, slightly overlapping faint red "High Holborn E.O/2D. PAID" marking; central stain caused by self-adhesive tape repair to internal tear, slight creasing and re-enforced lower-left corner but otherwise fine. Very rare early usage. B.P.A. Certificate (1996). Photo