Bidspirit auction | Italy - Air Post stamps

Italy - Air Post stamps - 1933, General Balbo Trans-Atlantic Flight issue, 5.25L +19.75L and 5.25L+44.75L, complete set of two triptychs in sheets of 20, the second one has some separation on the left, fresh quality unit without usual toning, full OG, NH, VF and scarce multiples, Sassone #S1509, €17,625, Est. $3,500-$4,000, Sc. #C48-49