Large leather case containing accessories for ozonator, two vulcanite face(?) masks with brass forks and balls made by C.B. Harness of London and Paris, English, 1900-1935 Large leather case containing accessories for ozonator 1900-1935
Ozonator transformer, in iron case with wooden base, by Compagnie pour la fabrication des compteurs et materiel d'usines, Paris, 1895-1920 Ozonator transformer 1895-1920