1920s French Brevet d’Invention Patent Archive (Lot of Four) goggles Excellent condition overall with no

Excellent condition overall with no cracks or structural damage

with tool marks and edge wear that testify to its service life

surface scratching

11" W x 18" D x 23" H

painterly quality associated with Victorian-era flow blue

1920s French Brevet d’Invention Patent Archive (Lot of Four) goggles Excellent condition overall with noc. 1920s; Rpublique Franaise Johnson Lock Co. Paris, France Chicago Group of four original French patent document sets ("Brevet d'Invention") relating to mechanical innovations attributed to Johnson Lock Co., each bearing official French government formatting and typographic seals. These documents represent formal international patent filings or protections, extending American mechanical inventions into the European market during a period of rapid