There is no need for inhabitants of a territory to have a currency or a government to be inhabitants.
Article 22 of the Covenant of the League of Nations does not say anything about a currency or government, just inhabitants.
"ARTICLE 22.
To those colonies and territories which as a consequence of the late war have ceased to be under the sovereignty of the States which formerly governed them and which are
inhabited by peoples not yet able to stand by themselves under the strenuous conditions of the modern world, there should be applied the principle that the well-being and development of such peoples form a sacred trust of civilisation and that securities for the performance of this trust should be embodied in this Covenant.
The best method of giving practical effect to this principle is that the
tutelage of such peoples should be entrusted to advanced nations who by reason of their resources, their experience or their geographical position can best undertake this responsibility, and who are willing to accept it, and that this tutelage should be exercised by them as Mandatories on behalf of the League."
Avalon Project - The Covenant of the League of Nations
The Zionists did not have a currency or a government, in fact, they inhabited Europe, not Palestine. LOL