unmounted mint Block Larger Than four -- 4c. lower left corner blocks of ten from Plates 1A and 1B, each with variety bright green omitted, fine unmounted mint; an unusual pair. S.G. 1011e, £120++

Details
unmounted mint Block Larger Than four -- 4c. lower left corner blocks of ten from Plates 1A and 1B, each with variety bright green omitted, fine unmounted mint; an unusual pair. S.G. 1011e, £120++