Identifying a possible piece of Warspite armour

Where on Warspite was armour of the thickness shown in the earlier post fitted?

It has not yet been identified; the plate may be from Warspite, but its location and provenance still need to be established.

There is no definitive location for the armour shown in the earlier post. The object is an unlabeled piece of heavy metal displayed among maritime wreck material in a Cornish car park. Its thickness, apparent age, and local context make Warspite a plausible source, but measurements and comparison work are still under way. Surviving material still needs provenance research before it can be assigned confidently to a ship or structural position.