As of 2019, how many pieces does the collection of Green Vault museum consist of?

So, the answers "over 500" and "over 1,000" are also correct.

And it’s not clear what the 2019 heist involved , how much of the collection was taken , what was left. Who was responsible and where they caught etc ? Poor, poor, poor!

I don’t understand “ the largest treasure collection “. Any of the European State museums would have hundreds of thousands of items of “treasure”

How the hell would anyone know this?