The Village Street Department, with reference to traffic-control signs, signals or markers owned by the village, is authorized to indicate the ownership of the signs, signals or markers in letters not less than three-eighths inch, or more than three-quarters inch in height, by use of a metal stamp, etching or other permanent means. Except for employees of the Village Street Department, police officers, contractors and their employees engaged in a highway construction contract or work on the highway approved by the village, it is unlawful for any person to possess a sign, signal or marker so identified.
(625 ILCS 5/11-313) Penalty, see § 70.99