Lot 756
756
unused Block of Four 1933, $4.50 on 75c Balbo Flight (C18, Gibbons 235), block of four representing the complete overprint setting, fresh, beautifully centered, lightly hinged, two stamps never hinged,

Details
unused Block of Four 1933, $4.50 on 75c Balbo Flight (C18, Gibbons 235), block of four representing the complete overprint setting, fresh, beautifully centered, lightly hinged, two stamps never hinged,

EXTREMELY FINE, WELL-CENTERED BLOCKS ARE SCARCE, Scott retail $1,250.00+, Gibbons £1,100+

Lot Essay

Expertization: signed Bolaffi, with 1965 Bolaffi certificate

Note: Only 8,000 stamps (2,000 blocks of four) were actually issued. Virtually all of the 1,128 flight covers were franked with the special stamp, reducing the total of unused examples to less than 7,000. Many of the blocks of four have subsequently been broken into singles.
photo est.