The name of any candidate for election to any office of the City shall be printed upon the ballot when a petition in the form hereinafter prescribed shall have been filed on the candidate’s behalf with the election authorities. Such petition shall be signed by at least fifty (50) electors of the City, if for the nomination of a candidate for an office filled by election from the City at large, and by at least twenty-five (25) electors of the ward if for the nomination of a candidate for an office to be filled by election from a ward. (Amended 5-7-13)