The coats of arms come from the Della Valle-Del Bufalo Archives currently housed in the Vatican Secret Archives. The blazonry is accompanied by historical notes and comments on the documentation kept in the extensive family archives.It also includes a heraldic description of the coats of arms, a useful technical glossary and the transcription of the genealogical notes at the bottom of the watercolours. The book ends with a series of brief information sheets on each family.Text in Italian and English.