Are you sure the camera you saw was of the Kodak Premo series? Your description sounds like a 6.5x9cm or 9x12cm German plate camera made in the 1910-1940 period. It used a slide-off single-plate/cut-film metal holder, or slide-off film pack, AND could be also used with a slide-in 120 rollfilm holder.
Zeiss/Ica, Voigtlander and many others made many of these, and the one you saw MAY have been made by Nagel, but BRANDED KODAK. Kodak contracted with Nagel to make a folding plate camera in the above sizes called the "Recomar" model.
They are fairly affordable, and are often found with an uncoated but fairly sharp Tessar lens or similar clone. If you're interested, check eBay for the more common camera models like "Maximar", "Avus", Reccomar", etc. Suydam, Rada, Rollex (sp?) and others made Euro-plate rollfilm holders.
Originally Posted by Fragomeni