After the votes cast at the respective polling places for each of the candidates have been counted and the statement has been made as required by sections 621 and 625 of this title, the results shall be announced to the persons present, and the tally papers, shall be securely sealed in a package, upon the outside of which shall be endorsed: “Enclosed are the tally papers of the ballots cast at the election [or primary] held at the ____ polling district, Election District of ____, on the ____ day of ____, 19____”. If there is more than one polling place for a polling district, the endorsement shall also specify the polling place. The judge of election and inspector of opposite political affiliation shall forthwith deliver such package, along with the statement required by sections 621 and 625 of this title, the sealed packages, containers or envelopes referred to in section 621 of this title, and the electronic voting machines, and the district register, to the board of elections. All books, lists, papers and other vouchers in connection with a primary or election, other than the district register, shall be signed by the election officers and delivered by the boards of elections, after the determination of the result, to the Supervisor of Elections, and kept by the Supervisor of Elections, as vouchers to the primary or election, for a period of at least two years.