
Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), No. 1, 1993, museum in progress on board, puzzle, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), No. 2, 1993, museum in progress on board, puzzle, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), No. 3, 1993, museum in progress on board, puzzle, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), No. 4, 1993, museum in progress on board, puzzle, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), No. 5, 1993, museum in progress on board, puzzle, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), No. 6, 1993, museum in progress on board, puzzle, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), 1993, museum in progress on board, 6 puzzles, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), 1993, museum in progress on board, 6 puzzles, museum in progress edition

Alighiero e Boetti, Cieli ad alta quota (Skies at high altitude), 1993, museum in progress on board, puzzle, museum in progress edition