Rectangular metal or enamelled warning sign with four mounting holes, printed in red and navy blue on a white background. The upper section reads “WARNING RC SIGS” (Royal Canadian Signals), with a red double-headed arrow below pointing horizontally. The lower section reads “BURIED CABLE”. The sign warns of underground communication lines maintained by the military, specifically the Royal Canadian Corps of Signals, responsible for field communications and radio networks.
The small printed number at the bottom, “9905 21-562-0136”, refers to the Canadian Forces Supply System code, confirming official government manufacture.