1d. rose-red, Imprimatur, with Letters in all four Corners, plate 167, AA, imperforate upper left corner sheet marginal with inscription and plate number ‚167‘, large margins, very fresh. The unique corner marginal Imprimatur from plate 167 in private hands (AL is in the N.P.M.(London), TA is in the Royal Collection, TL is still attached to the Imprimatur sheet).
