A letter written to Mr. T. N. Carswell, Abilene, Texas, from R. D. Hill, Little Rock, Arkansas, dated February 3, 1950. Hill requests that Carswell hold the letter for instructions to be utilizied later and suggests he obtain Cashier's Checks. Hill identifies "his man" in Albuquerque as Elmer C. Sproul, describes Sproul's background and gives his approval of Sproul. The reverse side includes a handwritten postscript by Hill informing Carswell that he learned that the tubing which Dalton wrote about is of smaller diameter than the pipe presently used by the firm thus it would not fit the units they are making.