Image Item No. Description  9156-1 (Inv)  DUPLO Airport 72 Parts, 12 Minifigures, 8 Books, 1989 Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Airport  9163-1 (Inv)  Duplo Airport - 47 el. 4 act. cards (3 aircraft) 42 Parts, 7 Minifigures, 1 Gear, 1993 Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Airport  9976-1 (Inv)  Duplo Airport 72 Parts, 12 Minifigures, 1989 Catalog: Sets: Educational & Dacta: DUPLO: DUPLO, Town: Airport