Labelled "Duplicate cards. Some corrected. Some superseded"

Two divisions within the carton: Division One: Each card represents one note on a letter of Poggius to any of his correspondents (typed, no obvious organization). Division Two: Summaries of Renaissance letters (handwritten). Each card lists manuscript location, author, recipient, and brief summary of letter (arranged alphabetically by subject of interest; listed in upper right-hand corner of each card).