The Belco is a simple camera for 36x36mm images on 127 film. It was introduced c.1951 by French company IDAM. It has a single-speed 'I' and 'B' shutter and fixed-focus, fixed-aperture "Bilux" 4.5cm lens. The body is made from two metal castings, held together with hinged metal clips. It is very similar to IDAM's Roc, differing by the addition of the 'B' shutter setting, and a tripod bush (at least some examples of the Roc also lack lugs for a strap). The camera has a small square viewfinder, and another, wide window in the top housing, served by its own eyepiece. McKeown states (writing about the Roc) that this houses an extinction-type lightmeter, but none can be seen in the example shown here. The camera has a sliding cover over the red window.
The Belco's listing at Collection Appareils notes that the shutter settings on the camera are marked 'Z' and 'M' (i.e. for a German user). The camera carries a different logo (a capital 'B' in a 'C') from the triangle-and circle logo of the Roc; the Clic, IDAM's other known camera, also has its own logo.