04/25/1916
https://www.presidency.ucsb.edu...
"Done at the city of Washington, this sixth day of April, in the year of our Lord Nineteen Hundred and Seventeen and of the Independence of the United States, the One Hundred and Forty-first."
"The said coal lands, if otherwise available, shall be subject to disposal under the aforesaid proclamation of September 28, 1914, at $2.00 per acre, until and including June 30, 1917, subject to the p..."
"No entry shall be allowed after that date under said proclamation for either the coal or the noncoal lands."
"In the event that any existing agricultural entry on the reservation made with a reservation of the coal deposits, is canceled on or before June 30, 1917, the land may, if otherwise available, until a..."