The Southwest Quarter (SW/4) of the Southeast Quarter (SE/4) of the Northwest Quarter (NW/4) and the Northeast Quarter (NE/4) of the Southeast Quarter (SE/4) of the Northwest Quarter (NW/4), in Section One Hundred and Forty-three (143), in Block One (1), D & P Ry. Co., Presidio County, Texas being 20 acres (R8247)