Ottavio Leoni (1578-1630) Self-portrait as a knight of the Order of Malta. 1625. Etching and burin. 110x140. Bartsch 9. Fine proof on thin laid paper, from the 1st state (of 2), before the number. Fine vertical tear at right edge. Gummed paper strip at head on verso, oxidized on recto. Small traces of glue in the corners on verso. Good margins. Joint: Portrait of Tommaso Salini, Roman painter, as a knight of the Order of Malta. 1625. Etching and burin. 110x140. Bartsch 7. Same condition. Rousseurs. Unidentified coll. stamp on 2 pl. 2nd with Winfield Robbins coll. stamp (New York, 1841-1910, Lugt not described), transpiring on recto. Set of 2 p.