I remember shaving with the Atra when it first came out, and I shaved with it until its successor, the Sensor, came on the scene. I have long since lost the original handle, but today at a flea market I found a replacement. It is an X4 which is the year and quarter of my second son, Tim. I got it cleaned up and put a blade on it. I may even take it for a spin sometime in November. I actually picked up three "razors" today. I got a wooden handle Trac II, the Atra, and a Slim. This picture is before the clean up. The Atra was actually in pretty good shape. I cleaned it and polished it with little effort. X4 means fourth quarter of 1977. 1977 was also the year the Atra was first introduced. This makes this a very special razor for me. I actually liked the Atra back in the day. After the cleaning.