It shall not be lawful for any person or persons to walk upon or otherwise injure the grass, trees, or shrubbery upon the squares around Washington Monument, known as Mount Vernon Place and Washington Place. All persons guilty of violating this section shall be subject to a fine of $1 for every offense; said fines to be collected as other fines and penalties are collected. City Code, 1893, art. 46, §23 1927, art. 29, §28 1950, art. 30, §6 1966, art. 21, §7 1976/83, art. 21, §6 Ord. 1882-50