The vintage Sgabello Americano Robur stool by S.p.A. Biemme Bologna Italy 1970s shows a fun color and has a silver ribbon in the middle. The plastic surface has fine scratches and is in very good vintage condition with minor signs of age and use. approximate measurements: Diameter 33 cm Height 44 cm. 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