The third design featured thicker ribs to help prevent warping. The second design of this viewer had a patent number, and somewhere during production VM switched to a smaller sized lens. The first design viewer had large lenses, was all black, and said "Patent Pending". Seven different variations of this viewer were made. The Model A was the first View-Master viewer produced (1938-1944). Model N (#2053) (same stock # as the push button viewer) viewers will be added when we find the time.įor our more organized collectors, here is a chronological listing of View-Master's viewers. This online guide will help the collector (and the non-collector who wants to sell their View-Master treasures) identify the more common viewers and their variants. After the collecting bug bites, most novices want to know what topics View-Master put on their reels and what types of viewers they made to view them. These novice collectors find the small 3D images exciting, entertaining, and they want to find more. Most View-Master collectors start their collection with a View-Master viewer and a handful of reels that they inherited from a kind relative, or that they rediscovered from their own past. View-Master Viewer Identification Contributors - Dale Crosby, Tom Martin, Scott Kemling, Mary Ann Sells VTCA View-Master Identification View-Master Viewers