Evaporation Devices Producing the Salts of Source Saint-Louis N°1 — Société Anonyme des Sources Saint-Louis - Saint-Yorre

Description

Postcard showing the interior of a factory with evaporation devices and three men working. The printed text on the front indicates the production of the salts of Source Saint-Louis N°1. On the back, the publisher is Société Anonyme des Sources Saint-Louis - Saint-Yorre, with administration in Paris, and a note that correspondence on the front is not accepted by all foreign countries.