1920s French Brevet d’Invention Patent Archive (Lot of Four) goggles of the world map which

of the world map which is a projection that appears to wrap the globe onto the outer half of a torus (a donut shape)

painterly quality associated with Victorian-era flow blue

Excellent condition overall with no cracks or structural damage

The van measures 6" x 3" x 3"

surface scratching

1920s French Brevet d’Invention Patent Archive (Lot of Four) goggles of the world map whichc. 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