The Six-20 Brownie (US Model) has a leatherette covered metal body geometric Art Deco design. It features two f/stops, a built-in close-up lens, time exposure capability and two brilliant finders.
This camera was very popular in the US and as such, it is a fairly common flea market find. Though a very simple camera, it has some rather nice built-in features like the close-up lens good for 5-10 feet.
Description Courtesy of https://www.brownie-camera.com/