State responsibility — Claims — In general — Valuation of property — Land and buildings — Furniture and tools — Relevance of insured value — Proper rate of depreciation — Relevance of Balance Sheet values — Accounts receivable — Deduction for bad debts — Payments on account made by subsidiary to parent company — Whether such payments result in reduction in total assets of subsidiary company — Claim by parent company as owner and creditor of subsidiary — Which claim should have preference.