Here's the pics of your jacket so all can see and possibly help you
As for value....................with no providence or history of when/where/tour it's from afraid in my opinion it's not a big number. There's other jackets that collectors go for that go for a few quid, for example the leather Bat 2 one, but that has a value because it's known how many were made and when/why.
What may help is trying to find some history, asking if anyone knows what year/tour it's from, searching for pics from that era with someone wearing one similar etc. Other than that put it on ebay, it's worth whatever the winner pays for it.