Did they ever produce a model 10 with adjustable rear sights?
Howdy
Since we seem to have revived a six year old thread, the answer to your question is no. Strictly speaking, the Model 10 has always had fixed sights.
To give you a more complete answer, the predecessor to the Model 10 was the 38 Military and Police revolver. First cataloged in 1899. It went through a few internal design changes and in 1905 the mechanism was perfected and continued to be produced under that name until 1957. There was a Target Version of the 38 M&P with adjustable sights early on. This one was made in 1917. Notice the tiny adjustment screws for the rear sights, and notice the lack of a barrel rib.
In 1946 Smith and Wesson introduced the K-38 Target Masterpiece. Basically the same gun as the older M&P Target Model with the addition of a barrel rib, different front sight, and the modern click adjustable rear sight.
Here are a couple of K-38s. The top one with the funky fake stag grips was made in 1957, the bottom one was made in 1950.
In 1957, Smith and Wesson changed over to a model number system for cataloging all of its products. The old 38 Military and Police, with fixed sights, became the Model 10. The K-38 with no significant changes, became the Model 14. This Model 14-3 was made in 1974.
Since that time there have been various other offerings of the old 38 M&P design made with and without target sights, both blued and stainless.