The plenipotentiaries of the high powers who signed the treaty, ACT, No. I — The Treaty between Russia and Austria of the 21 April… (1815)
“ If, however, either of the two Contracting Powers should, at His own expense, establish a new canal, the subjects of his Majesty the Emperor of all the Russias shall never be subjected to higher duties on navigation than those of his Majesty the Emperor of Austria. In this respect each party shall be considered on a perfect equality. ”
