Either a 1974 or 1984. Craftsmen had the charcoal color first. In the 80's tecumseh used it on a lot of them too. Could you try and compare the recoils. The 2 bottom side bolts that hold the blower housing on,do they have a Phillips head in them or are they solid. Phillips head would be early 70s. Sometimes if you Google the craftsmen number it will bring a picture of the unit it was used on,this could give you an idea of what era it was used in also.