Aux ouvriers du pain, du travail, et la vérite - Schmit, Jean-Philippe (L'auteur, 1848)
Caption title. - Goldsmiths'-Kress no. 35910.45. - OCLC, 19989858. - Reproduction of original from Seligman Collection, Rare Book and Manuscript Library, Columbia University. - Signed: J.P. Schmit