Observatoire de Paris.
Atlas Photographique de la Lune / Exécuté par M. M[aurice] Loewy et M. P[ierre Henri] Puiseux. – Paris: Imprimerie Nationale, 1896-1909.
The Paris Observatory Atlas, as it was usually called, contained 80 large photographs of different regions of the moon, taken over the course of 14 years. The photographs are not all to the same scale, and the entire face of the moon was not covered, but nevertheless it was unequalled as a photographic atlas until 1960, and the quality of the plates has perhaps never been surpassed. One interesting feature of the photographs is that a hand operated shutter was used to give the brightest areas the least exposure on the negatives. The final prints were produced by the unusual sand photogravure technique.