Originally Posted by
fietsbob
you saw what you saw ..

I'm talking 50's & 60's era so perhaps before you got out of Nappies ..
Tandem setups definitely have varied more than single bikes do .
I just refitted an 80's Santana that had both rim brakes running off the right lever and the drag brake operated with the left... now the brakes are run independently with a separate stem mounted lever which operates the drag brake which is a better set up.