Last weekend I aquired the first saw of my collection, a McCulloch 5-49! What a beauty! This saw runs like a champ. If anyone happens to have some old handle grips or an original manual for it please contact me. Also, I am having a difficult time determining the exact vintage. Can anyone help? It has the separate oil reservoir. The ID plate shows the model as 549, and the serial number starting with 33. Did they all start with 33 or did they make over 33,000 of these bad boys back then. Also there are raised numbers at the bottom of the plate that read 7-48. Help!