each signed in pencil, one numbered III/XV (one of 15 artist's proofs, even though Pereda erroneously cites 13, aside from the edition of 100) and the other annotated 'PA I/XXV' (an artist's proof, aside from the edition of 110), Artículo 28 an illustration for The Human Rights Universal Declaration, La Coqueta published by B/M Ediciones y Arte, Mexico City, each with the blindstamp of the printer, Kyron Ediciones Gráficas Limitadas, Mexico City, one the full sheet, one with full margins. (2)