This appeal is from a judgment for $335, including interest and from an order overruling a motion for a new trial in an action arising on contract, a copy of which is given in the complaint as follows:
“This article of agreement, by and between I. Dickinson and Dan W. Dickinson, as parties of the first part, and George-Schriner, party of the.second part,, witnesseth: That the parties of the first part take an option on the following .described real estate, namely: Southeast of, nine. (9), township one hundred, an.d .three (-IQ3), range fifty-eight (58), for the sum of three .hundred dollars ($300) —until thq fir§t day of March ,1903, or,-longer if ,by mutual,consent of both ..parties; which shall.net be longer, than the,-eleventh .day. of August,.,.1903. .And, it is further., agí ee.d that if' at the end of;that time should the. parties of.the first part fail to make a .d.eal that will give the party ,of the second part, a profit of- $300 over and. above the price.paid bjo.hirn, which is $5,000, the.parties of the first p.art are compelled by .this agreement to pay the said George Schriner the sum of $30.0..-;. ... . .
“Dan. W. Dickinson. . ... .[Seal.]-.
“I. Dickinson. ■ . [S.eal.]
. ,. ■ ■ “Parties of the First Part.
. “George-..Schriner. • [Seal.]
“Party of .the Second' Part.”
It is further alleged that plaintiff has performed all the -conditions on his part, that defendants have never sold or disposed of the land and have failed and refused to pay the above-mentioned amount which was due upon the . nth. day of August, 1903, that demand therefor was duly made .before the commencement of this action, and that plaintiff is still the owner and holder of such contract and entitled to the money due thereon. The legal sufficiency of the alleged facts to constitute a cause of action being the first questioned at the trial by an objection to the introduction of any evidence on the part of respondent, no greater latitude was indulged in sustaining the complaint, by overruling such objection, than is justified by the statute and the uniform decisions of this court. Section 136, Rev. Code Civ. Proc.; Stutsman County v. Mansfield et al., 5 Dak. 78, 37 N. W. 304; Johnson v. Burnside, 3 *436S. D. 230, 52 N. W. 1057; Whitbeck v. Sees, 10 S. D. 417, 73 N. W. 915; Finch et al. v. Park et al., 12 S. D. 63, 80 N. W. 155.
Appellants admit the execution of the contract, but deny liability thereon for the alleged reason that they entered into the same as the agents of A. G. Hahn and that respondent knew that they were thus acting in his behalf. Confessedly, there is nothing upon the face of the contract or affixed to the signature of either appellant to indicate that he acted in a representative or fiduciary capacity in creating the obligation made the basis of the action but a reversal is urged on the theory that parol testimony was competent to prove such a relation by showing a contemporaneous transaction in which appellants acted as the agents of Mr. Hahn in selling respondent the land and that both contracts were made, subject to the approval of Hahn. Now the unambiguous recitals of their contract plainly refute the suggestion that they were acting as the agents of such undisclosed principle, or otherwise than for themselves, and the case of Western Publishing Plouse v. Murdick, 4 S. D. 207, 56 N. W. 120, 21 L. R. A. 671, is conclusive upon the point that such written instrument cannot be thus contradicted, and the testimony offered would constitute no valid defense to the action. Section 1239, Rev. Civ. Code; Western Publishing House v. Bachman, 2 S. D. 512, 51 N. W. 214; Washabaugh v. Hall, 4 S. D. 168, 56 N. W. 82; Lewis v. St. Paul, M &. M. Ry. Co., 5 S. D. 148, 58 N. W. 580; Schmitz et al. v. Hawkeye Gold Mining Co. et al., 8 S. D. 544, 67 N. W. 618; Anderson v. Matheny et al., 17 S. D. 225, 95 N. W. 911.
The general rule is that parol testimony is inadmissible in such cases and in order to invoke the exception here contendéd for there must be something expressed in, or omitted from the contract which creates such a doubt that the court cannot determine who is obligated as a matter of law, and the oral testimony must be explanatory, and not contradictory of the written instrument. 17 Cyc. 673 to 675, inclusive. It may be granted, as claimed by counsel for appellants, that at the time the contract in suit was executed by his clients, and. in connection with such transaction a contract for the sale of the land to respondent was entered into by A. G. Hahn, through their agency, but the parties and capacity in which the\ *437acted being entirely different, the oral testimony relating to the latter contract, which contains no reference to the subject of this action, was wholly incompetent. It was so determined by the territorial court in a case similar to this upon principle, and its decision was sustained on appeal for the reason that the contract in that action was complete, and could not be changed by importing into it any additional agreement pertaining to the subject in controversy. Gilbert v. Moline Plough Co., 119 U. S. 491, 7 Sup. Ct. 305.
From an examination of the entire record we are convinced that no errors of law occurred at the trial and that the verdict in favor of respondent was properly directed. The judgment appealed from is therefore affirmed.