Publications for 09/1871

• L.G. Tillotson Catalogue and Price List out
• Mechanic's Fair, EC&M received silver medal
• Piano insulators for sale [Ad]
• Telegraph in Oregon, EC & M supplying west coast
• Chester's Patent Insulator
• Notes on the Glass Insulator, Lefferts, Egg, Chester, Haley, Kryolite, Cryolite etc.
• New Line at Newark, NJ uses screw glass insulators