This rate was officially accepted by the British government in a treaty titled "Agreement between His Britannic Majesty's Government and the Administration of the Faroe Islands, for Regulating the Financial Relations between the United Kingdom and the Faroe Islands," which came into force on 27 March 1941.
Owo przeliczenie zostało oficjalnie zaakceptowane w traktacie zatytułowanym “Agreement between His Britannic Majesty's Government and the Administration of the Faroe Islands, for Regulating the Financial Relations between the United Kingdom and the Faroe Islands” („Umowa między rządem Jego Królewskiej mości a administracją Wysp Owczych regulująca stosunki finansowe pomiędzy Zjednoczonym Królestwem i Wyspami Owczymi”).