Welcome to the forum. A 29-1 is a great first post. As Jeff said, we love pictures!
Very scarce Model 29 variant.
I ran across one several years ago and was able to buy it. I haven't seen one in person since.
Here's another picture of some "coke bottle" grips. These grips were made from 1956-1968. Your pistol will likely fall in the 1962-1963 time frame.