El tratado de la pintura
Diego Antonio Rejón de Silva's Spanish edition of Leonardo da Vinci's treatise on painting, with Alberti's De pictura appended, printed at the Imprenta Real in Madrid in 1784 for painters and students of perspective. The engraved plates pair bare geometric line diagrams—cones of sight, shadow projections, lettered rays—with small sketched eyes, hands, and profile heads, giving designers labelled optical schematics and isolated anatomical fragments.
