1854 DIE 1 1D IMPERFORATE IMPRIMATUR FROM UNISSUED RESERVE PLATE SEVEN. A very fine imperforate top marginal imprimatur from 1854 die 1 1d reserve plate seven lettered AB, fine margins with marginal inscription in top margin and in a dull red-brown shade on blued paper. Reserve plate seven was one of the reserve plates and not used for printing and the only examples that exist are the 21 imprimaturs removed from this sheet. (Ref 138346).
