From an album of 30 collotypes mounted on cardboard and captioned by hand under the proof. Vews of Rome, 1871 Album of 30 collotypes mounted on cardboard and captioned by hand under the proof. Italian collotype incunabula. "With extraordinary precocity, making use of the calotypes of the Lombard S. Lecchi, Michele Danesi had published (with the title Ruine di Roma after the siege of 1849) a series of four lithographic tables. After lengthy experiments aimed at finding a means of photomechanical reproduction of the image, in 1869 Michele, together with his sons, succeeded in developing a photolithographic system (later called phototype) of great and refined quality in the rendering of grays. The news was given by L’Osservatore Romano on December 29 … In 1871 he was awarded a prize at the Milan National Exposition for a work in thirty tables entitled Album di vedute (Marina Miraglia, Biographical Dictionary of Italians, Traccani ed.).