A marine policy must specify—
(1)the name of the assured, or of some person who effects the insurance on his behalf;
(2)the subject-matter insured and the risk insured against;
(3)the voyage, or period of time, or both, as the case may be, covered by the insurance;
(4)the sum or sums insured;
(5)the name or names of the insurer or insurers.