This Instagram photo by Eric Darvoy @Pixdar on Twitter: (#1) Soies Zwicky & Co. door at 36 Boulevard de Sébastopol, Paris The Zwicky silk thread company (of Wallisellen in Canton Zürich, Switzerland), most recently visited in my posting on the 19th, “A Swiss thread”. Apparently, in the 1940s, the company had an office in Paris, … Continue reading A Swiss thread in Paris