? "Sir F.A. Rien" ?????? ??? ??????
news
So I'd like to ask you, what do you think is the best catalogue to buy?
http://www.vaticanphilately.org/rs.htm
See near the end about books on Vatican Philately.

Thanks a lot!
"...These books, a specialized catalogue such as those by Bolaffi or
Sassone, and a subscription to Vatican Notes will serve as a basic library
for anyone seriously interested in this specialty...".
So I suppose Bolaffi it is.
Thanks again!