View-Master Model A Viewer - vintage - large lens - 2nd version

NOTE: All Model A viewers warped shortly after production. Subsequent Model A versions unsuccessfully attempted to resolve this issue, which was only resolved with the introduction of the Model B. Each version of the Model A viewers are offered by 3Dstereo in one of two conditions: warped but reel will advance by pulling advance lever warped and reel will NOT advance by pulling advance lever, thus requiring some assistance from ones finger to move it along Look for advance info: "Good Advance" or "Poor Advance" Large Lens Model 1939 -1940 2nd version viewer poor advance Composite Plastic manufactured c.1940-1941, it is the second issue viewer. The second generation viewer came in a soft cardboard box that was gold with blue. The viewer has minor warpage, which is so typical of the material used. It closes and opens but does not advance a reel through it. The lenses are larger than subsequent viewers and it has the nickname of "bug-eye" viewer.