Contact Allen G Berman for information and valuations. He is an expert on Vatican / Papal coins, he has written books on the subject.
I've met him at several large coin shows, he is an incredible resource who loves to meet collectors and discuss coins like yours.
PS: I last saw him in October, he is very much active in the industry.
https://www.facebook.com/allen.g.berman/
https://www.numismaticnews.net/directory/allen-g-berman
