I have 2 womens Admiral bikes I would like to find the age but first I need to find the serial number. The number is not in the common places so I may have to take them apart to find more information. One hint is the coaster brake hub, Musselmanhud Co. Cleveland Ohio U.S.A. on the brake arm. One of the bikes has a 1977 registration sticker on it. Any help would be nice. Bikeman48 Milwaukee, Wi.