Weeping Raven JG 51 armour plate

[rhinogobius]

Hi, I have this piece of armour from JG51 showing some of their kills during Battle of France / Battle of Britain. I'm researching this as have had in collection for around 30yrs and thought about time I did. 1st thing I would love to know is what aircraft and what part the armour is likely to have come from it's 10mm thick if that helps and as heavy as hell. Also if anyone can help identify the planes / pilots involved in the marked kills or has any paper records or photos relating to JG51 at this time.
kills as follows:
Spitfire 5.5.40
Curtiss 11.5.40
Hurricane 23.5.40
Swordfish 29.5.40
Hurricane 2.6.40
Blenheim 9.6.40
Spitfire 18.6.40
Spitfire 20.6.40
Hurricane 13.7.40
Hurricane 27.7.40
Spitfire 31.7.40
Hurricane 14.8.40

Any help with research appreciated.