1870, 1 ½ d. lake-red, plate 3, AH, Imprimatur with top margin and inscription, some gum remnants in the top margin from the original mounting, fresh and very fine. Only 25 stamps were taken from the Imprimatur sheet, of which AK and AL (both N.P.M. London) and TA (Royal Collection) unavailable for private collectors. (S.G.Cat. GBP 6.000)
