https://en.numista.com/catalogue/pieces52572.html
Website with mintage figures
https://colnect.com/en/coins/coin/14735-500_Lire_Antonio_Vivaldi-1970~2001_-_Republic_Lire_Numismatic_Product-Italy
Tiziano 500 Lire Info
https://en.numista.com/catalogue/pieces52558.html
I also own the coin (pic next to the Titanius Proof)
If there is anything else to show please let me know as this is my first forum post.