In any event the contribution due per unit of assessment shall never exceed a maximum of 2,500 francs.
As a temporary provision the assessment for the first two years shall not exceed 1,500 francs per unit.
Colonies may, at the request of the nations to which they belong, be admitted to form part of the institute on the same conditions as the independent nations.
Art. 11
The present Convention shall be ratified and the ratifications exchanged as soon as possible by depositing them with the Italian Government.
In faith whereof the respective Plenipotentiaries have signed the present Convention and have hereunto affixed their seals.
Done at Rome the 7th of June one thousand nine hundred and five, in a single original, deposited with the Ministry of Foreign Affairs of Italy, of which certified copies shall be sent through the diplomatic channel to the contracting States.
For Italy: Tittoni[seal]
For Montenegro: General Mitar Martinovich[seal]
For Russia: Kroupensky[seal]
For Argentine Republic: Bald.o M. Fonseca[seal]
For Roumania: Nicolas Fléva[seal]
For Servia: M. Milovanovitch[seal]
For Belgium: L. Verhaeghe de Naeyer[seal]
For El Salvador: J. Gustavo Guerrero[seal]
For Portugal: M. de Carvalho e Vasconcellos[seal]