Any vehicle mentioned in § 6-2 which is used upon the streets of Baltimore City upon more than 1 day per week, on an average, for a period of more than 3 months in any 1 year, shall be considered as “commonly used or employed”, in the City, within the meaning of said § 6-2. City Code, 1927, art. 4, §118 1950, art. 38, §50 1966, art. 31, §65 1976/83, art. 15, §32 Ord. 17-243 Ord. 66-887 Ord. 75-881