I should add here that fyimo's beautiful no-dash 66 is exactly how I believe all early 4" models should have been configured if their design had been better thought out. Love those smooth Goncalo stocks, too!

As was later incorporated into the Mod 66-1, a red ramp and black rear sights would have made the gun much more useful and appealing to both LE and shooters.

The uniqueness of the all stainless sight "mistake" on the early 66s and 67s, as well as the 66 being the first magnum handgun produced by S&W is what makes this early gun so interesting to many owners and collectors today, including me..

Many were produced but it seems, in reality, not nearly as many retained their original sight configuration....

JMHO