CBS Logo
Schwinn Chain Ring ButtonBikes For Sale
Schwinn Chain Ring ButtonRentals
Schwinn Chain Ring ButtonCards & Stickers
Schwinn Chain Ring ButtonParts & Things
Schwinn Chain Ring ButtonArt
Schwinn Chain Ring ButtonEphemera
Schwinn Chain Ring ButtonDate Codes
Schwinn Chain Ring ButtonApparel
Shop Picture 1Events
Shop Picture 1Artifacts
Schwinn Chain Ring ButtonProjects
Schwinn Chain Ring ButtonWeather
Schwinn Chain Ring ButtonLinks
Schwinn Chain Ring ButtonContact
 
Morrow Hub Dating

The J 3 stamped on the hub refers to the year and month of manufacture starting from 1931 . The letter is the year, the number is the month;

  1. 1931
  2. 1932
  3. 1933
  4. 1934
  5. 1935
  6. 1936
  7. 1937
  8. 1938
  9. 1939
  10. 1940
  11. 1941
  12. 1942
  13. 1943
  14. 1944
  15. 1945
  16. 1946
  17. 1947
  18. 1948
  19. 1949
  20. 1950