Well yes he is correct it is a 1972-73 model.I have 2 myself one is an auto drive and the other is an auto push,but I do plan to put the drive system back on.The only part I'm missing for that is the top part of the handles.If I had that I would have already put everything onto it.They are usually a difficult mower to find,but lately I've noticed quite a few of them appearing on flea-bay so now I'm not so sure they are as rare as I originally thought.