Not sold at an auction of Quittenbaum
Tubular Chair by René Herbst
René Herbst belonged to the French Modernists or Avant Garde in the Interbellum – the time between the two World Wars, WW I and WW II. This tubular chair is a steel one which deviates from his better known aluminum chairs.
Source: The Red List
René Herbst Armchair
This armchair by René Herbst was on auction as part of The Allan Moss Collection on October 7, 2014 at Wright The estimate was: $5,000–7,000. The outcome is: $10,625 .
This Armchair by René Herbst fetched $ 30,000.- (Estimate $10,000-15,000) at a Phillips de Pury & Cy auction in NYC today.
And I found this yellow Mini Sandows Chair by Rene Herbst. Vitra seems to have discontinued this chair.