I just took possession of my sister's Superior that she bought new. She and I both bought one at the same time back in about 1976. Mine is long gone but hers has been sitting idle for 30 years at least. The serial number on the head tube is EM802860 which indicates May'76but the head badge is 2208 which is 1978. I know we didn't buy it in 78 because I bought my first car then and you know how that goes. Any info on their numbering systems back then that might explain the 2 year difference?