The written contract of sale executed by plaintiffs as defendant's agents is admissible to show that the sale was made, although the agents had no written authority to make it, and it was afterwards repudiated by the defendant. Monroe v. Snow, 131 I11. 126, 23 N. E. 401 • Johnson v. Buchanan (Tex. Civ. App. '09), 116 S. W. 875; Grosse v. Cooley, 43 Minn. 188, 45 N. W. 15; Cutter v. Pearsoll, 146 Cal. 690, 81 P. 25; Snyder v. Fidler, 125 Towa, 378, 101 N. W. 150.