I love to collect old recordings and have accumulated many sets of Pagliaccis to date, the oldest of these being the first complete recording form 1907, and the majority are from the 1950s, although I have a few from the stero era
"Some Essential Pagliaccis (and Others Not So),"
Journal of the Jussi Björling Societies of the USA & UK: Vol. 16
, Article 15.
Available at: https://scholarsarchive.byu.edu/jussibjorlingsociety/vol16/iss1/15