FDR: “Possession of the mines, collieries, and facilities taken under this order shall be terminated by the Secretary of the…”

“Possession of the mines, collieries, and facilities taken under this order shall be terminated by the Secretary of the Interior within sixty days after he determines that the productive efficiency of the mines, collieries, and facilities has been restored to that prevailing prior to the interruption of production referred to in the recitals of this order.”