Having found a need to question some of my own assumptions from time to time, I would ask: is this letter authentic? Simply being on several sites on the net doesn't make it so.

Snopes.com says as follows:

Claim: The Vatican houses the world's largest collection of pornography.

Status: False.

Origins: Although this rumor dates back hundreds of years, there's nothing to it....

Though the rumor about the Holy See's holdings is unfounded, it continues to spread, often vectored by those one would think would know better...

Father Leonard Boyle, chief librarian for the Vatican Library until his retirement in 1998, stoutly denies the rumor. The Vatican Library houses some 1.5 million scholarly books and 150,000 precious manuscripts, including ... correspondence between Henry VIII and Anne Boleyn


(Do you s'pose the aforementioned Letter would be considered "pornographic" or not?)