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Danzig, The council's request

between Poland and the Free City of Danzig in regard to this Treaty or any arrangements or agreements made thereunder."
This provision was evidently intended to lay down a general principle to be developed and completed by subsequent rules. These rules are to be found in Article 39 of the Paris Convention of November 9th, 1920, which runs as follows :
"Any differences arising between Poland and the Free City of Danzig in regard to the present Treaty or to any other subsequent agreements, arrangements or conventions, or to any matter affecting the relations between Poland and the Free City, shall be submitted by one or the other Party to the decision of the High Commissioner, who shall, if he deem it necessary, refer the matter to the Council of the League of Nations. "The two Parties retain the right of appeal to the Council of the League of Nations."
The Court has no doubt that the principles laid down in its Opinions Nos. 8 and g as to the final character of decisions under  international law, apply to any final decision under the aforesaid provisions.
This point is not contested by the Parties, although Poland maintains that there may be exceptional cases in whicli even a final decision can be reconsidered by the High Commissioner or the Council of the League of Nations.

The point now at issue is only whether there is in force a decision to the effect that the Polish postal service at the port of Danzig is restricted to operations within its premises at Heveliusplatz and that the use of such service is confined to Polish authorities and offices.
It appears from the documents submitted to the Court that both Parties mainly rely in their arguments upon three documents, viz., the decision of May 25th, 1922, the decision of December 23rd, 1922, and the High Commissioner's letter of January 6th, 1923.

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An appeal was brought by Poland before the Council of the League of Nations against the decision of General Haking of May 25th, 1922. On August 30th of the same year, in consequence of he interpretation given by the High Commissioner of certain points of
his decision, the appeal was withdrawn. The decision so inter-