In 1971, the movie "Dirty Harry" resulted in S&W's Model 29 becoming nearly impossible to obtain (even before then it was difficult to find one in most places). Gene West, a gun writer for Gun World, wrote to his friend, Elmer Keith, to request his assistance in obtaining a Model 29 from S&W. 
Elmer wrote to Doug Wesson, VP at S&W, and asked him to help Mr. West. In late 1971, a 4-inch Model 29-2 was sent to Mr. West. The inscription on the side plate shows the involvement of Mr. Keith. I purchased this 29-2 from Gene West's son about 26 years ago.
Bill


Bill