Biplane model trolley designed by Bruno Munari for robots in 1979. Folding steel structure, with wheels. Two floors in smoked glass, one of the two presents a break (see photo No. 11). The photos complete the description. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution