Dating old schwinns

The 1970 Super Sports with Huret dropouts seem to have used a two digit year ('C70204' -- March, 1970, 204th frame).The 1979 Chicago built Le Tour and Super Le Tour models had their Serial Numbers on the left rear axle hanger and began with an 'S', followed by the standard letter/number scheme.

Numbers mostly followed a three-digit format – often but not necessarily with a “P” as the prefix.The letters "I" and "O" are not used, to avoid mistakingthem for numbers.If there is only one letter in the first twopositions, the first number or two numbers refer to productionyear.It was a sequence consisting of a letter followed by two digits, starting with A10, followed by A11 and so on until A99. Here’s a table of the codes and their manufacturing dates: For example, H7634 is the thirty-fourth frame or fork scheduled during August of 1976.Self-Describing Serial Numbers This system started in use during the mid- to 1994’s.We found a very early Paramount – claimed to be a 1938-9 vintage – with serial number A545.


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