Henri Le Secq (1818-1882) Cathédrale de Reims, 1851. 18 heliogravures preserved in a period folder, title label on the first plate. Signature of the photographer in the negatives. Size of the images : from 32 x 24 to 34 x 26 cm. Attached : Unidentified photographer Reims Cathedral, c. 1870. Albumen print, mounted on cardboard. 23 x 29 cm Provenance: archives of the architect Charles Genuys . Henri Le Secq (1818-1882) Cathedral of Reims, 1851. 18 heliogravures in a vintage folder, title on cover . Photographer's signature in the negatives. Dimensions of the images : from 32 x 24 to 34 x 26 cm Included : Unidentified photographer Reims cathedral, c. 1870. Albumen print, mounted on cardboard. 23 x 29 cm