This broadside advertises the Phoenix Wire Broom and Brush Works, M. C. Isaacs & Co., proprietors and sole manufacturers of "Isaac's Patent Celebrated Locomotive Steel Wire Snow and Track Brooms." The item features detailed illustrations of two broom models (No. 2 and No. 3) with patent dates (Aug. 8, 1876), and a depiction of the brooms mounted on railroad tracks. A warning against patent infringers is overprinted diagonally in red text, noting that M. C. Isaacs & Co. was granted an exclusive right to manufacture these brooms and would prosecute infringers.
Subject: Railroad equipment
No additional authority information available for Railroad equipment.
This is a price list catalogue from the Detroit Novelty Works, sole agents for Nathan & Dreyfus' injectors. Published on May 21, 1867, the catalogue features numerous large illustrations and detailed pricing information for various injector models. Nathan & Dreyfus acquired the US rights to the injector from inventor James Gresham in 1866 and subsequently patented improvements to the device. The catalogue highlights these improved models, which were the subject of a patent infringement lawsuit discussed in the Brotherhood of Locomotive Engineers' Monthly Journal in 1880.