(1) Land shall not be deemed to have been surveyed or resurveyed until the plan thereof has been authenticated by the signature of the Chief Surveyor.
(2) Every plan authenticated by the Chief Surveyor under subsection (1) shall in any Court of Law or in any proceeding of a legal or quasi-legal nature be conclusive evidence of the survey information comprised therein unless and until such plan is cancelled by the Chief Surveyor by virtue of section 26.
(3) Every plan purporting to bear the signature of the Chief Surveyor for the purpose of subsection (1) shall be deemed to be properly authenticated unless and until the contrary is proved.