1d. rose-red, Imprimatur, with Letters in all four Corners, plate 212, AA, imperforate upper left corner sheet marginal with inscription and plate number ‚212‘ and series number ‚254‘, large margins, very fresh. The unique corner marginal Imprimatur from plate 212 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).
