Not sure if this will help or hurt, but my Nagasawa-built Team Shimano track bike (a few pics here: http://www.flickr.com/photos/dolface/sets/72157594233420341/) is simply stamped 14 on the bb shell.
galen pewtherer san francisco, ca usa
On 6/13/07, Edward Albert <Edward.H.Albert@hofstra.edu> wrote:
> I have a Nagasawa Kirin bike with the serial #8208. Richie Sachs
> dated it to 1982. Seems the first two numbers are the date. He also
> looked at pics of the bike which seemed to confirm this assesment.
> Remember, early ones have regular fork and rear drop out ends and not
> the "plug" lugs (not sure the correct name is for this style).
> Eddie Albert
> Chappaqua, NY, U.S.A.
> >>> "firstname.lastname@example.org" <email@example.com> 06/13/07 5:01 PM >>>
> Hello All,
> Just wondering if anyone out there knows if there is some sort of sequen
> ce to Nagasawa serial numbers. I am trying to date a Nagasawa which may
> be from the late 70s.
> Mike Short,
> Austin TX.