Timlin, J.

Quoting from the appellant’s brief: “The chairman then notified plaintiff of the defective workmanship, and because of the condition of his work and because he had not given any bond as agreed upon, told him to not go near the works any more.” It is then argued that plaintiff quit work upon this invitation and never completed the bridge, and the rebuilding of the bridge was relet to another ■in good faith, and the latter proceeded to construct it, and that plaintiff knew that this last work was being done and made no claim that he intended to resume work or to hold the town liable nor any objection to the use by the second contractor of the materials plaintiff had on the ground until after the town had paid the second contractor for building the bridge, hence there is evidence upon which an estoppel might be found. It seems' very obvious that there is here no *469element of estoppel. If the town officer 'rightfully forbade the plaintiff to continue because of defective workmanship or because the giving of the bond was a condition precedent to commencing, the work,- then the plaintiff should not recover, not because he is estopped, but because he failed to perform according to the contract. This argument assumes that the town officer was. authorized to stop the work. If, having such authority, he stopped the work wrongfully, the plaintiff 'might treat that as a breach of contract on the part of the town and maintain this action without further demonstra- . tion or protest. If the town officer had no such authority the plaintiff might be defeated because he failed to perform. But in either case the law of estoppel would not apply. Es-toppel in pais is where a party 'is' not allowed to assert an otherwise conceded right because by words or conduct he has misled the other party with respect to the existence or asser- ' tion of that right in such manner and to such degree that the position of the parties cannot be equitably restored. But we need not inquire into the authority of-this town officer to stop the work if defective, because there is some evidence thát the work was done according' to contract up to a point at which the plaintiff was ready for the steel beams, and that the town breached the contract by failure to deliver the steel as agreed or at the place agreed upon. This constituted such a breach of contract on the.part of the town that the plaintiff could treat the contract as at an end by the de- „ fault qf the town and recover his damages, and he was not required to interfere with or protest to the second contractor or to the town or be noisily assertive. The weakest point in the plaintiff’s case is upon the sufficiency of his performance ‘ up to the time of breach by the town. The evidence offered by defendant tends to show such a condition of negligent and inadequate performance that it is quite as bad as the manner of transacting town business is shown to be in this town. But the plaintiff testified that he .constructed the work so far *470as be went in accordance with the plans and specifications, and this was evidence which the jury had a right to believe. There was ample evidence to support the finding that the town failed to deliver the steel beams and also to support the finding that the plaintiff was ordered to proceed with the construction of the bridge without waiting for the written contract and bond.

If the uncontroverted evidence established that the parties made no completed oral contract, but only entered into preliminary negotiations to be followed by a formal contract containing material j>rovisions not covered by the oral agreement, the verdict in this case could not stand. But there was evidence from which the jury as triers of fact might infer that the oral agreement was complete in its terms and that performance on the part of the plaintiff should commence at once without waiting for the execution of the written contract and bond. If this were true, then the fact that the parties contemplated making a written contract later embodying the same terms, but which they never fully consummated, would not necessarily prevent the oral contract partly performed from taking effect. Francis H. Leggett & Co. v. West Salem C. Co. 155 Wis. 462, 144 N. W. 969.

We find no error in the instruction to the effect that in estimating plaintiff’s damages the jury might take into consideration the value of certain plank purchased by the plaintiff and delivered to him at the work but not paid for, which were afterward used by the second contractor in completing the bridge. These were the property of plaintiff and constituted material furnished by him to the town. Whether he still owed for them or not is a matter between third persons.

We find no other points of sufficient gravity to merit further attention.

By the Court. — Judgment affirmed.