Since I KNEW with certainty, that the first TI Supers had drum brakes, I thought I'd look up the literature to prove that.
In Giorgio Nada Editores 'Le Vetture che hanno fatto la storia Alfa Romeo Giulia' , which is a total MUST have, isbn 88-7911-143-4 , there is the official press article on the TI Supers release. A with pics and B with accompanying text, which states the 'three leading shoe drum brakes'.
See photographed texts.
hope the pics come through well.
Rik