Lot 30512 – 1998 Comedians ERROR OF VALUE 30p for 37p Joyce Grenfell in mint nh lower left corner marginal traffic light block of six

1998 Comedians ERROR OF VALUE 30p for 37p Joyce Grenfell in mint nh lower left corner marginal traffic light block of six, prepared for use but not issued, a lovely positional item and quite possibly the largest surviving multiple, rare as Pierron records only 30 mint examples (SG £16’800+)