The Minister of Public Building and Works shall for all purposes be a corporation sole and shall have an official seal, which shall be authenticated by the signature of the Minister or any person authorised by the Minister to act in that behalf.

The seal of the Minister shall be officially and judicially noticed, and every document purporting to be an instrument made or issued by the Minister and to be sealed with the seal of the Minister authenticated in the manner provided by this section, or to be signed by any person authorised as aforesaid, shall be received in evidence and be deemed to be so made or issued without further proof, unless the contrary is shown.

A certificate signed by the Minister that any instrument purporting to be made or issued by him was so made or issued shall be conclusive evidence of that fact.

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No stamp duty shall be chargeable on any instrument made by, to, or with the Minister.