Amongst them was a map of the Dangrek range showing Preah Vihear on the Cambodia side (Annex 1 map)
In the course of the negotiations for the 1925 and 1937 Franco- Siamese Treaties, which confirmed the existing frontiers, and in 1947 in Washington before the Franco-Siamese Conciliation Commission, it would have been natural for Thailand to raise the matter: she did not do so.