If I may also hijack this thread for an Angenieux mount identification request:
https://drive.google.com/file/d/1kHPpBD3TKLB7Tms7M7r-RGxEuQ28GAyL/view?usp=sharing
https://drive.google.com/file/d/1Mo-z4k_f_n-3_xGyhBf5SCYRe7eH4_Ph/view?usp=sharing
It's an Angenieux 10x15 (10-150mm) from 1975. It has Vidicon B written on it. I assumed, googling, it would be C Mount but this is not the case (unless there's an adaptor on it).