delivered the opinion'of the court.
Under the statute of limitations in this state actions of debt and of assumpsit must be commenced within six years next after the cause of action shall accrue, and not afterwards (Gen. St. § 2163); while by section 2167 it is provided that, “in all actions of debt or assumpsit brought to recover the balance due upon a mutual and open account current, the cause of action shall be deemed to have accrued at the time of the. last item proved in such account.”
The testimony leaves it in doubt whether there was ever a mutual open account between the firm of Post & Coulter and the appellee, King, the evidence strongly tending to show that there was an understanding that Post & Coulter were to attend to the appellee’s law mat ■ ters, and that he was in turn to serve them at his shop, *357and that there were to be no charges made by either party. If, however, it should be conceded that such a mutual open account existed prior to the year 1878, it is admitted that the firm of Post & Coulter was dissolved in that year, and consequently there could have been no mutual account between that firm and the appellee after that date, and the bar of the statute had attached before the bringing of this suit in 1886 to any account made prior to such dissolution, unless the assignment of Coulter’s interest therein to Post, and the subsequent charging by Post of the firm account in his individual account, operated to take the former out of the statute.
There is a dispute in reference to the time upon which Coulter made the assignment to Post. The written assignment in the handwriting of Post bears date upon the 28th day of July, 1885; and Coulter swears that the instrument shows the true date upon which the assignment was in fact made, while the evidence of the appellee is that it was made at the time of the dissolution of the copartnership between himself and Coulter in the year 1878. If the assignment was not in fact made until the date shown by the written assignment, then the bar of the statute of limitations had attached before the assignment was made, and the account should not have been allowed; and if, on the contrary, the assignment was in fact made in the year 1878, it does not appear that such assignment was made with the consent of appellant or that he had any knowledge of the same; and certainly appellee cannot claim the benefit of section 2167 by charging the assigned account as part of his personal mutual and open account current, and thus avoid the bar of the statute. “The rule that items within six years draw after them other items beyond that period is, by all the cases, strictly confined to mutual accounts or accounts between two parties which show a reciprocity of dealing.” Ang. Lira. §§ 148, 149.
The items properly allowable under the statute include only those embraced in the dealings of the two parties *358with each other. Then, if each keeps an account, as he ought, each would have the means at all times of ascertaining the balance due from one to the other; and with this knowledge it is reasonable to say that each new item draws after it all prior items in the account, and that an acknowledgment of, and a promise to pay, the entire account may fairly be inferred from the last transaction; and this furnishes the reason for the exception made by the statute. But if one party to the account buys up claims against the other without the other party’s knowledge, and charges such claims in his account, it cannot be said that a promise to pay such claims shall be inférred from any subsequent dealings between the parties resulting in an extension of the original account between them, but without any reference to or knowledge of the assigned account on the part of the party sought to be charged therewith. The account of the firm of Post & Coulter against King was between other parties, and cannot be considered as a mutual account between appellant and appellee, for the purpose of preventing the bar of the statute; and it was error to submit to the consideration of the jury such account as a part of the account current between the parties to this action. Hay v. Kramer, 2 Watts & S. 137; Green v. Ames, 14 N. Y. 225.
It is claimed, however, that the entire account here sued upon was presented to the appellant in the year 1885, and that he then promised to pay the same. This might, if true, constitute a good cause of action for the entire amount claimed by Post; but, conceding that there is evidence to support such a cause of action, and that the instructions upon this branch of the case were correct, it is impossible to determine which of the two theories submitted was the one accepted by the jury. Therefore, since one of these theories was clearly erroneous, the judgment must be reversed and the cause remanded.
Reversed.