I have a factory parts manual for a Simca 1100, in French. My manual only covers cars to 1974.
Most Simca1100s had a Solex carb but the 7CV Simca 1100 Special had a single Weber 36 DCNF, many variations from 36DCNF7 or 8 to 36DCNF34. (depends on year of manufacture, engine capacity and manual or semi-auto.)
The twin carb Simca1100TI had two Webers, 36DCNF17 on the left and 36DCNF18 on the right. (I'm guessing they are mirror images of each other.)
I have specs for all those Weber carbs, I'm happy to look them up for you if one is a match. The manual is in French so I need to know what the French is for Choke Tube and Jet? ( I have Tube Emulsion and Gicleur Principal (Main jet?) and Gicleur Pompe (I'm guessing accelerator pump jet?)
I tried googling "Weber 1CB1/2" and got a page full of Weber barbecues...
Edit: I just tried Weber ICB and got lots of matches. It is ICB not 1CB. (Letter I, not number 1.)
Out of interest, what are you up to? Is it a Simca engine?