29.—(1) Unless the estate duty is paid as hereinafter provided, the estate duty payable in respect of any property passing on the death of a deceased person shall be a first charge on all the immovable property of the deceased coming to an executor or being under his control, so far as the duty payable by such executor is concerned, and on the property passing to any other person, so far as the duty payable by such other person is concerned:
Provided that immovable property or any estate or interest therein, is not, as against a purchaser for valuable consideration or a mortgagee, charged with or liable to estate duty after the expiration of 12 years from the happening of the event which gave rise to an immediate claim to such duty.
(2) Nothing in this Act shall be held to create a charge for estate duty on any property situate outside Singapore, or to authorise the Commissioner to take any proceedings outside Singapore for the recovery of any estate duty.