No privilege tax license shall be required of hotels, restaurants, fruit stands and vendors of soft drinks, circuses, exhibitions, street fairs, or other amusements when the same are held within the enclosure of and in cooperation with the annual holding of any state, county or community fair or any fair held for the benefit of the public where no dividends are declared to the stockholders thereof, and the proceeds thereof are used exclusively for the operation, maintenance and improvement of such fair.