Not tested. Very clean, shutter sounds likes it functions.

The image shows a vintage Beacon II camera with a flash attachment. Here's some information about it:

Manufacturer: Whitehouse Products, Brooklyn, NY.

Production Era: 1947-1955.

Film Format: Uses 620 film.

Lens: Fixed focus lens.

Shutter: Simple rotary shutter, likely with a single speed around 1/30th of a second.

Flash: The flash unit uses flash bulbs