War — Effects of outbreak of — On enemy subjects with regard to property and other rights — Frustration of contracts by force majeure — Sale of goods by lien holder with consent of Custodian of Enemy Property — Goods subject to contract of sale at outbreak of war — Incomplete transaction — Liability of Government under Treaty of Peace to compensate original purchaser of goods — Relevance of prior payment of compensation to original sellers — Treaty of Peace with Japan, Article 15 (a).