"1 woodburytype from a drawing, "Central Part of the Nebula in Orion.". American Photo-Relief Printing Co., Philadelphia. John Carbutt, supt. (attrib.)...This is an 8 x 10 woodburytype, generally the largest practicable with the presses then...
"70 "heliogravure" plates of photographs of the heavens taken between 1898 and 1900. The Photogravure and Color Company, New York did the plates."--Hanson Collection catalog, p. 139
