SG235b. 1933.
AIR BALBO MASS TRANSATLANTIC FLIGHT. '$4.50 ON 10c' Orange-yellow (Land of Heart's Delight).
Brilliant fresh well centred mint with stunning 'vivid' colour and excellent perforations.
David Brandon and B.P.A Certificates.
Position 2 from the 'sheet ' of four stamps.
OF THE GREATEST RARITY.