After ascertaining and announcing the result as aforesaid, such judges shall make, fill up and sign duplicate returns or statements of the votes cast for and against such proposition as aforesaid, in the form found in Section 6-3 of this Article, each of which shall be attested by the other judges, and each of which shall then be enclosed and sealed in an envelope, one of which shall be on the outside addressed to the appropriate election authority and one to the comptroller of such city, or to the officer whose duties correspond with those of the comptroller. Upon each of which statements shall be endorsed “city election law returns”. In the same manner the tally sheet in duplicate shall be signed by the judges, and shall be enclosed and sealed in separate envelopes, one of which shall be addressed to the county judge and one to the city clerk; upon both of the envelopes shall be endorsed “city election law tallies”. On the outside of each envelope shall be endorsed whether it contains a statement of the votes cast or the tallies, and for what precinct and ward. After the envelopes respectively containing such returns and tallies are closed and sealed, the judges of election shall each write across the folds of such envelopes their names, and thereupon each of the judges of election shall take one of said returns or tallies, and shall deliver, each one respectively, to the person or officer to whom addressed, by noon of the next day, and when delivered he shall receive a receipt therefor from the officer to whom delivered, and it shall be the duty of such officer to give such receipts, and to safely keep such envelopes unopened until called for by the election authority as herein provided.