I think we may have addressed this before, if so, my apologies.
When did Fiamme change the logo of the Ergal rims to the square label we all know? I know the Yellow- label tubular rims were the precursor to the Ergal tubulars, and that the Yellow labels were, if anything, even lighter than the later Ergals, but when did the square Ergal label first come into being?
I'm thinking 1975-79, but someone correct me--or if you can get it more precisely? I have a restoration project for which I'd dearly like to believe a set of square-label Ergals would be correct, but I have a feeling it's too early for them.
Thanks.
Charles