Cables porcelain enamel double-sided sign, made in England. This striking advertising board features the bold. Lettering in black and white against a deep green background, along with a classic illustration of the. One side shows the slogan. Henley cable coil reel. These signs were used in electrical supply shops and industrial distributors during the. Mid-20th century, promoting Henley’s high-quality cables used across Britain’s expanding power and communication networks. Type: Porcelain enamel advertising sign. Design: Double-sided (two different display designs). Colors: Green, black, white, and yellow tones. Material: Heavy metal sheet with glossy porcelain enamel coating. 18 x 20 inches. Origin: Made in England. Category: Vintage electrical / industrial advertising sign. Mounting: Pre-drilled holes for wall or bracket mounting.