Pseudonym of Gaspard-Félix Tournachon (1820–1910), a French photographer, caricaturist, journalist, novelist, and balloonist. ALS in French, signed “Nadar,” one lightly-lined page of graph-like paper, 5.25 x 8, no date. Letter to a friend, from whom Nadar orders 300 engraved cards and 500 letterheads that he needs very urgently. He requests proofs to approve immediately. (The cards with his name and mark may have been used as a backing for his photographs). In very good condition, with scattered toning and soiling. RRAuction COA.