Set from 1974 consisting of six Progress armchairs by Ettore Sottsass Jr. and Hans von Klier for Poltronova, together with two matching square tables measuring 120 x 120 cm. The six Progress armchairs feature white shells, original brown leather upholstery, and four-star aluminum bases. The tables, purchased together with the armchairs in 1974 for a professional office in Pinzolo, display stylistic features consistent with the chairs and the rest of the original furnishings. While likely belonging to the same line or a matching set, the tables do not bear identifying marks for certain attribution. All pieces have remained in the same office for over fifty years, retaining their original configuration. Provenance is documented by the 1974 purchase order. Dimensions of the armchairs: height 75 cm, width 50 cm, depth 55 cm. Condition: good.