Cieli ad alta quota, 1993
Boetti varied his work "Cieli ad alta quota" in six versions which were not only pictured in the in-flight magazine Sky lines. Passengers could ask the stewards for the picture in jigsaw form, which when put together portrayed the picture from "Cieli ad alta qouta" which was in the magazine. The jigsaw puzzles were made the same size as the folding tables in the aeroplane.
One set consists of six limited edition jigsaw puzzles by Alighiero e Boetti in a hand-made cardboard box.
Limited edition of 4000 copies