Originally Posted by
Hummer
...Second, Nishiki Custom Sport frame (blue), serial S1 2C467. This is a Japanese manufacturer, but not Kawamura, the first digit "1" is for the year of frame manufacture 1981.
That second point is interesting to me. I have a Talbot with the serial number 'S1 2 255'. Consensus is it was
probably made in Japan, up to this point I hadn't seen a similar serial number myself. I was dating it by the components only, which range from June 1980 to Feb 1981 so suspected 1981 - I'm pleased to see that's the case from what you wrote. Thanks