Treaties — Interpretation — Relevance of Headings — Authentic Interpretation.

Treaties — Interpretation of — Recourse to Preparatory Work — Construction of Disputed Clause by reference to Other Treaties and their Preparatory Work — Authentic Interpretation — Logical Meaning — Relevance of Heading of a Clause — Interpretation of the Treaty of Trianon by reference to the Treaty of St. Germain — Articles 267 and 250 of the Treaties of St. Germain and Trianon respectively.