Gnome in Kiwi-land:
While our carbon fiber tandem is not exactly vintage, it has a bit of classic (and unorthodox) look.
We designed it and Bob Davis in Arizona (a retired aerospace engineer) built it. Currently has 17,000+ miles on the odo.
Have owned several custom steel tandems, a couple of them lugged and one fillet brazed.
Here are photos of our tandem (and the happy owners) as you requested.
Pedal on TWOgether!
Rudy and Kay/zonatandem