t500-102***
t500-500***
It seems strange that they would have a 6-digit number?
As 5-digits would be more common for that period?
For example:
1971 T500 - Frame & Engine started at: - 'T500-30846'
1972 T500 - Frame & Engine .................: - 'T500-46463'
1973 T500 - Frame & Engine..................: - 'T500-59779'
And most brand new Suzuki models of that period started from (model) - 10001, so I would have expected the T500 to have started from number = T500-10001.
The 'G'T500 model did continue the number sequence (as it wasn't really a totally 'new' model) running into 6 digits, but a GT would have had a GT500 number prefix I think?