In estimating the commissions for a sale of real estate, where part of the price was paid in town lots, the actual and not the trade value of the property should be considered. Boyd v. Watson, 101 Iowa, 214, 70 N. W. 120; Porter v. Hollingsworth, 62 N. Y. S. 796, 30 Misc. 628; Colland v. Trepet, 70 I11. App. 228; Davidson v. Wills (Tex. Civ. App. '06), 96 S. W. 634. See also Sec. 185.