In proceedings for a contravention of section 308 or 309 a certificate that purports to be a certificate under section 309 is prima facie proof—
(a) that, at the time the certificate was given, the persons named as such in the certificate were directors of the company so named, or proposed directors of the proposed company so named, as the case may be;
(b) that the signatures in the certificate purporting to be the signatures of those persons are their signatures; and
(c) that publication of the notice to which the certificate relates was authorised by those persons.
Registration of Prospectus