I am positive that the triangular Columbus decal signifies that the
main 3 tubes are Columbus like many bikes were 531 in the main triangle
also.TRETUBI was a later product from Columbus who specification I do
not know.
It would be interesting to list all of Ben Lawees firsts or
innovations........................what about a Lawee timeline?
BOB FREITAS
who visited the Lawee warehouse on Western in LA with my
Dad ,who had an on again off again relationship with Ben.
MILL VALLEY, CA USA