I saw an old Soviet-era model that was working and seemed similar to this one, it was bought by my photography instructor, he showed me his weird collection. It used to be attached to the underside of spy airplanes to take panoramic pictures not just satellite imagery and earth maps. Maybe you should look for swing-lens cameras on the used/vintage market today. Look for Horizon line from KMZ, their later models continued under Russian production rather than being brand-new Soviet stock.