No peddler, solicitor, hawker, itinerant merchant, transient vendor of merchandise or other person shall enter upon any premises within the city or ring a bell or knock on the door of any residence, dwelling, flat or apartment for the purpose of soliciting orders for the sale of or for the purpose of selling goods, wares, merchandise, newspapers, books, pictures, periodicals, magazines, stocks or accounts, services or any other thing for the purpose of disposing of or peddling the same, or for the purpose of buying or soliciting the sale of any junk, rags, bottles, old metal or similar items for salvage without first having received from the city clerk a permit to conduct or carry on such activity, business or enterprise.
(Prior code § 6507)