A friend has an old Crescent frame she wants me to "bring it back to life" in the coming months. It was her first ever "real" bike and she wants to give it to her daughter as a gift in the next year. The question I have is, before I start to tear it down, what is the bb threading on a Crescent? Is it english/italian or what? I've searched around and haven't found any info that's helpful on something that specific.
It's the classic orange bike with blk/wht checks and 531 tubing.

Any help is greatly appreciated.

Thanks
KRhea