Soon thereafter I began my employment with Surefeed whereas I became one of the first factory trained technicians for the Flowmaster.I was instrumental in the upgrading and development of future versions of the Flowmaster and gained over 10 years experience in repairing, maintaining, upgrading, and servicing the Flowmaster.This clearly is when the component was made and not when the bike was made, but unless the component or bike manufacturer had lots of stock lying around in inventory, the date should be a fairly good indication of the year of the bike.At least it would be the earliest date that the bike could have been made.Of course, all this assumes the bike has the original component.The most likely components to be original are the stem, handlebars, seatpost, and brakes.Since 1938, PR Hoffman has brought leading-edge technologies to some of the world's most high-tech industries.
Singer - Machine Serial Numbers Up to March 1996 you could call Singer Customer Service with your serial number and they would give you a of for models 301, 301A, 401A and 403A.
This database is the first and only complete database of Singer sewing machines productions in the world.
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As the wear on a vintage bike increases, the greater the likelihood components are not original, either through replacement of worn parts or through component swaps.
Swaps can take place early in the life of a bike as the proud new owner upgrades to new or used components of higher quality.