This rare tubular Hopmi chair is a design by architect H.F. Mertens for UMS (later Pastoe) and was presented in 1932 in their collection as an easy to transport and assemble chair
The patented Hopmi fitting was a special tubular pipe with cut tread with a torpedo nut that connected the pieces of the chair together when you tighten it
Hopmi was a company that produced gas pipe fittings and bicycle parts in Utrecht
The idea and concept was its way ahead of its time and also due the economic crises it failed
After the second world war companies like Pastoe and Ikea produced their furniture with the same concept for easy transportation and assembly
Gerrit Rietveld also experimented with this type of connection in the 1930s and he made two known examples of his Hopmi chair with identical connection, one of which is in the Centraal Museum in Utrecht
Good. Good original vintage condition with wear consistent with age and use, old patinated surface with character by age, some wear/loss of nickel plating in some area's of the tubular steel base, detailed condition report upon request.