29 - BIBLIOGRAPHY / CATALOGUES - [LOT 13 VOL.] : - HENRI PETIET / Ventes Piazza : ESTAMPES MODERNES, 2003-2016 / 12 Catalogues. Bibliothèque H. PETIET, 1° partie, 1991. Br. 13 vol. set, (B.E.). (Henri Marie PETIET, "HMP", nicknamed "Le Baron Petiet", 1894-1980, took over Ambroise Vollard's print collection and became "one of the greatest print dealers of his time". Nearly 50 print sales).