(1) Where the inventory of a predeceased spouse is concluded, the inventory on the death of the surviving spouse shall be continued in the former inventory proceeding.
(2) In the event there are additional assets in the proceeding referred to in sub-section (1), their serial number shall be in continuation of the last item in the former inventory proceeding.
(3) Where, after allotment or after the death of the surviving spouse, inventory proceeding is instituted, the assets which have been already valued in the prior inventory need not be valued again in the subsequent inventory, unless there are strong grounds to believe that their value has changed. In the event of change of value of currency, such change shall be taken into consideration. In addition to the valuation already made, due description of assets previously made shall be retained. If separate inventory is filed, the description shall be reproduced in the separate inventory.