From your sleeve picture that looks like a Buffalo hide . Do you have any idea what kind of leather you got there? Just interested in learning about your jacket.
Sadly I don't. I got it from https://www.rokit.co.uk/vintage-1980s-civilian-a2-flying-leather-jacket-s
Those are all the details they have. I'd be interested to know the hide as well. But soon as I saw it, I was determined to nab it.