Messrs. F. A. Ringler, 21 Barclay Street, New York. Steel Facing Copper Plates, Printers of Photogravures.
Messrs. Leidel & Co., 901 6th Avenue, corner 51st Street, New York. Modeling Wax; Etchers' Supplies.
Thomas Hall (Electrician), Bromfield Street, Boston, Mass. Hydrometers (Smee's Battery), etc.
New York Steel and Copper Plate Co., 171 Wallabout Street, Brooklyn, N. Y.
Mr. Jas. Moffet, 159 Wooster Street, New York. Copper Plates in the Rough.
