The Jamis Earth cruisers were made from 1979-86..Yours looked to be completely original.. There not really a high end cruiser, but putting some cross bar and removing the chain guard, you have a cool BMX cruiser..The tires (sand jam)on these bikes had sea shells for treads..I ride cruisers like that one out here in California..I wish I had asked what your plans were before you sanded off the paint, I would have liked to have an original Earth cruiser..