unmounted mint Block Larger Than four 29c District of Columbia Bicentennial, Black (engr.) omitted (2561a), T.R. corner margin block of sixteen which includes the Zip block of four, Copyright block of six and Olympic block of six, never hinged, fresh and very fine, Scott retail $2,400.00est.

Details

unmounted mint Block Larger Than four 29c District of Columbia Bicentennial, Black (engr.) omitted (2561a), T.R. corner margin block of sixteen which includes the Zip block of four, Copyright block of six and Olympic block of six, never hinged, fresh and very fine, Scott retail $2,400.00est.