Nationality of Corporations — Siège social — Theory of Control — Article 246 of Treaty of Trianon.

Treaties — Interpretation of — Construction of Identically Worded Provisions Contained in Different Treaties — Construction of Disputed Clauses by Reference to Other Treaties — Conflict between Provisions of Different Treaties — Interpretation of the Treaty of Trianon by Reference to Provisions of the Treaty of Versailles — Articles 297 and 250 of the Treaties of Versailles and Trianon Respectively — Nationality of Corporations — Theory of Control — Recourse to Preparatory Work.