§ 60-a. Licenses. It shall be unlawful for any person, association, partnership or corporation to engage in the business of buying or selling old metal, which business is herein designated junk business, and which person, association, partnership or corporation is herein designated junk dealer, unless such junk dealer shall have complied with the provisions of this article and obtained a license so to do from the mayor of the city, if the principal place of business of such junk dealer is in a city, or the mayor of the village if such place of business is in an incorporated village, otherwise from the supervisor of the town in which such place of business is located; for which license shall be paid such mayor or supervisor for the use of such city, village or town, the sum of five dollars, which license shall expire on June thirtieth of each year. The provisions of this article shall not apply to any person, association, partnership or corporation duly licensed and engaged in the business of scrap processing as provided in article six-C hereof.