Kodak Duaflex camera, in very nice condition with cover. This is a lovely art deco camera dating from 1949-1955. It takes 620 roll film. This is the original USA model with a Kodet lens.

For details see:

http://camera-wiki.org/wiki/Kodak_Duaflex

There is also a manual available here:

https://www.cameramanuals.org/kodak_pdf/kodak_duaflex.pdf

This is a popular camera for “through the viewfinder” photography; build a simple black card tube around the viewfinder of the Duaflex and then photograph the viewfinder with a digital camera.

See here:

https://en.wikipedia.org/wiki/Through_the_Viewfinder_photography

and here:

https://blog.jpegmini.com/photography-tutorial-shooting-through-the-viewfinder/