Note: This scheme is for all Chicago built non-Paramount models excluding 1962-1963 Superiors, 1964-1969 Super Sports and 1968 S/S Tourers (whose Serial Numbers are located on the left rear axle hanger and consist of a single letter code for the month [again, skip "I" and "O"], the last digit of the year and a 3-digit sequential build number -- e.g.
An example would be 'G0181' and equates to "Giant, January, 1981".
As the name suggests, the Collegiate series was marketed toward the college crowd, as a spinoff of Schwinn's popular "Varsity" models from the 1950s.
Originally produced in Chicago in 1964, Collegiates were 26-inch lightweight bikes in boys' or girls' styles with coaster brakes.
Where you see a red link, this is for a derailleur model dating from 1950 or before, which I do not (yet?
) have in my collection - but for which I do have some kind of real and relevant documentation.