(2)In estimating the principal value under this section the Controller shall fix the price of the property according to the market price at the time of the deceased's death and shall not make any reduction in the estimate on account of the estimate being made on the assumption that the whole property is to be placed on the market at one and the same time :Provided that where it is proved to the satisfaction of the Controller that the value of the property has depreciated by reason of the death of the deceased, the depreciation shall be taken into account in fixing the price.
