Dumbfounded by serial number

[Eatontkd]

I have tried to find out what maker, model, and year of this frame I acquired for a single speed I'm piecing together. I've looked all through the resources I know of, nothing. Any of you have ideas?

 

[rickyd]

pic of whole frame will help

 

[Eatontkd]

Thanks rickyd. Here are several "important" areas of the frame structure.

 

[detroitbike]

Japanese
Possibly .... C.Itoh or Bridgestone

 

[Euphman06]

I agree Japanese... lugs remind me of the Schwinn Voyageurs that were made in Japan. Were those panasonic built?

 

[Scout Evans]

I agree Japanese... lugs remind me of the Schwinn Voyageurs that were made in Japan. Were those panasonic built?

A lot of them were Panasonic. I had a 76 Traveler that was Panasonic. Later they were made by Giant, easy way to tell them is the serial number that starts with a G. For Panasonic bikes that Schwinn sold, here's what I've found on the serial number web page:

Le Tour and Super Le Tour models sometimes began with an 'S' followed by the Japan Made numbering system:
1972 - SA200000...
1973 - SA300000...
1974 - SA400000...
1975 - SA500000...
1976 - SA600000...
1977 - SA700000...
1978 - SA800000...
1979 - SA900000...
1980 - SA000000...
1981 - SA100000...
1982 - SA200000...
1983 - SA300000...
In the 1980s, the 'S' began appearing in other models as well (Passage, Prelude).
1984 - SA400000...
1985 - SA500000...
1986 - SA600000...

Japan Made numbering system: Letter is the month, number in the first or second position is the year.
1971 - A100000... or 1A00000...
1972 - A200000... or 2A00000...
1973 - A300000... or 3A00000...
1974 - A400000... or 4A00000...
1975 - A500000... or 5A00000...
1976 - A600000... or 6A00000...
1977 - A700000... or 7A00000...
1978 - A800000... or 8A00000...
1979 - A900000... or 9A00000...
1980 - A000000... or 0A00000...
1981 - A100000... or 1A00000...
1982 - A200000... or 2A00000...

 

[Eatontkd]

A lot of them were Panasonic. I had a 76 Traveler that was Panasonic. Later they were made by Giant, easy way to tell them is the serial number that starts with a G. For Panasonic bikes that Schwinn sold, here's what I've found on the serial number web page:

Well, at least I know it's a Japanese frame, perhaps a Giant because of the G...

 

[Scout Evans]

I think Giant is/was Taiwan.

 

[detroitbike]

Plate for Kstand looks different. No detail of lugs on BB shell.
Great resource , I have many years of these.

 

[detroitbike]

Lots of mfg's back then .