Here we go. The photos show the strap, how they came in 1967. Only replaced by now, as the rubber wears out. The white paper is just to make it easier to see the strap, the next pic shows the strap making a loop over the bow.
The straps ensure that the moving bow does not interfear with the cloth. 100 percent original, yeah man! I'm that way. Less talk, more action.

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1967 Roundtail Spider,
"Duetto" bought new and it's forever. It's one of the very oldest 1750 Spider Veloce, imported and sold in Sweden in late 1967.
www.veloce.se
and the
www.duettoregister.com
More than 1300
Duettos in the register since November 1996.