(a) When all voting machines to be used in an election are locked and sealed, the key to each machine shall be enclosed in a sealed envelope on which shall be printed:
(i) The number or designation of the election district and precinct in which the machine is to be used;
(ii) The number of the seal with which the machine is sealed;
(iii) The number registered on the protective counter as reported by the county clerk;
(iv) The signature of the clerk and the signatures of two (2) representatives, if any, placed across the seal.