In November 2019 Wright auctioned parts of the Boyd collection where this Red Blue Chair was sold for $21,250.
The Hollandsche Patent Metaal Industrie or “HOPMI” was a manufacturer of several metal specialties. Parts for Bicycles for instance as locks. It also manufactured 2 HOPMI chairs designed by Gerrit Rietveld somewhere in 1932. One of the two was acquired by a Dutch Univereity professor, Prof. Lanjouw from Utrecht, whose heirs have given this chair on loan to the Central Museum of Utrecht in 2008. The Utrecht Central has the largest collection of Rietveld chairs. Then this chair was actually rediscovered. I posted about the discovery in 2008 already.
Later a Dutch architect, Victor Veldhuizen van Zanten gor the idea to create a limited edition of 250 Hopmi Chairs in cooperation with a grandson of Gerrit Rietveld, Egbert Rietveld, who runs the label Rietveld Originals.
The photo here I took at the home of a friend who has bought one of te limited edition chairs.
This rare Zwaan Chair by Gerrit Rietveld was sold at a November 8, 2018 Wright Auction of the Boyd Collection. It was estimated $10,000–15,000 and sold for $25,000.
No, unfortunately I haven’t visited IMM Cologne in 2016, but I plan to do so again in 2017. Via Design Boom I found out that Patricia Urquiola had designed Cassina’s stand there (and later in Milan). It was in celebration of Cassina’s 90th Anniversary. She used a temporary Rietveld installation in Arnhem of 1955 later used for the sculpture garden of the Kröller-Müller Museum. Cassina had designed a MutAzioni series for the occasion and the Black and Green Rietveld was one of that series.