Set of 2 NAM enamel cable signs – Sign./T.V. Cable – industrial - Enamel sign - Enamel

The set of 2 NAM enamel cable signs represents classic industrial signage used historically to identify Sign./T.V. cable infrastructure. Enamel signs like these were commonly employed in the mid-20th century for their durability and clear visibility in industrial environments. The enamel coating—a combination of porcelain fused onto metal—provides resilience against weathering, corrosion, and fading, making these signs highly collectible today. NAM likely refers to a company or standard related to cable or electrical installation, and such signs would have been used to mark cable runs or maintenance points. Industrial enamel signs hold particular interest for collectors of vintage commercial and industrial memorabilia due to their graphic design styles, manufacturing quality, and historical context in telecommunications or electrical utility sectors. They serve both as decorative items and as artifacts reflecting the evolution of industrial infrastructure and safety communication.