Participants (2033) ALL
Gianna Fahrni, "Blühender Baum"
Aarau, Aargau, Switzerland (member of Stadtmuseum Aarau group)
Aarau, Aargau, Switzerland (member of Stadtmuseum Aarau group)

"carton box. Light exposure: 25 seconds. Manually developed in our in house laboratory. (Schalenentwicklung)"