Loss of right of pre-emption on transfer

Any person having a right of pre-emption in respect of any immovable property proposed to besold shall lose such, right unless within two months from the date of the service of such notice, he or his agent pays or tenders the price specified in the notice given under section 8 to the person so proposing to sell: Provided that the right of pre-emption shall not be so lost if the immovable property in question is actually sold for an amount smaller than that mentioned in the notice or to a person not mentioned in the notice as purchaser