Every person owning and operating a taxicab or taxicabs under a license from the City may adopt any trade name, design, color scheme or method of painting or lettering such taxicab that is approved by the Service Director. Whenever any person owning or operating taxicabs does not adopt and use an approved trade name, design, color scheme or method of painting and lettering as hereinbefore mentioned, then it shall be mandatory for such person to paint his name and the word "taxicab" on the taxicab or taxicabs. Such name and word "taxicab" shall be painted on each side of the taxicab and shall cover an area of not less than ten inches by twelve inches. (Ord. 16-1945. Passed 10-26-45.)