

If your gun had the adjustable sights, it would be a "Super Single-Six Convertible." The Magnums were dropped & Convertibles were offered. It was because folks were asking for the other caliber for their guns. In 1959, the Magnum Single-Sixes were produced, and later on, when they decided to make just one model, they made convertibles. Any fixed sighted Single-Six with a serial number before 150,000 did not have the mag cylinder. The number places it in the production era after the magnum cylinders were being added to the Single-Sixes. So, as you already know, your gun is a FIXED sighted gun, and that makes it a "Old Model Single-Six Convertible." It's not marked "magnum" or it would have a different serial number block.

MUCH better than any other resource for us. You can join RENE, and Chad (chet15) has a Reference Guide that is INVALUABLE to collectors. As FM alludes to, we use the RENE Reference Guide for information.
