Opinion by
Porter, J.,The plaintiff brought this action to recover commissions alleged to have been earned in a sale of certain real estate of the defendant. The trial resulted in a verdict and judgment in favor of the defendant and the plaintiff appeals. The first four specifications of error refer to rulings of the court sustaining objections to the *391admission in evidence of certain letters written by the plaintiff to the defendant, after the property had been sold and the transaction closed. There was no dispute that the defendant had entered into a contract with the plaintiff, who was a real estate broker, to pay him a commission in case he obtained a purchaser for the property. The defendant, on October 5, 1907, wrote a letter to the plaintiff advising him that the property had been sold to the Excelsior Drum Works, which letter was produced and offered in evidence by the plaintiff, and was admitted without objection. The plaintiff then offered in evidence a letter written by him to the defendant, on October 8, 1907, and the court sustained an objection to the admission of that letter, upon the ground that it was written after the transaction was closed and contained self-serving statements. This letter might properly have been admitted upon the ground that it was a reply to the letter of October 5, written by the defendant, but its exclusion worked no injury to plaintiff’s cause. All that can be said for that letter is that it constituted an assertion by the plaintiff, after the transaction had been closed, that his efforts had been the procuring cause of the sale to the Excelsior Drum Works. If there had been any suggestion that the claim of the plaintiff was an afterthought and that there had been undue delay in the assertion of his right to compensation there might have been some merit in this specification of error. That this plaintiff had promptly asserted the right to be paid a commission upon the sale was accepted in the case as an undisputed fact, and the court admitted in evidence a bill for the commissions which he presented to the defendant on October 15, 1907. The fact of which the letter would have been competent evidence not having been in dispute, the judgment should not be reversed because of the exclusion of the letter.
The letters to which the second, third and fourth specifications of error refer were properly excluded. *392These letters were written after the sale of the property had been closed, the defendant did not answer them and he was in this case under no duty to answer them. This was not a case in which the plaintiff was required to show either notice or demand. These letters were declarations of the plaintiff in his own behalf, as to a transaction entirely past and closed, and there being no duty upon the defendant to reply it cannot be said that his failure to do so was an admission of the truth of the statements in the letters contained: Dempsey v. Dobson, 174 Pa. 122; Allen v. Peters, 4 Philadelphia, 78; Bush v. Ferry, 7 Philadelphia, 195; Gearhart v. Gwinn, 32 Pa. Superior Ct. 567.
The question upon which, under the evidence, the right of the plaintiff to recover turned, was not merely whether the property had been sold, but was the agency of the plaintiff the immediate and efficient cause of the sale? A number of witnesses testified at the trial that the representative of the Excelsior Drum Works, the purchaser, had been introduced to the defendant by another real estate agent some months before this plaintiff had become an agent for the sale of the property, and.that the negotiations thus begun had been continued down until the time of the sale. The defendant testified that he had paid a commission to the real estate agent who thus introduced the party who became the purchaser. The purchaser testified that neither this plaintiff nor any of his agents had anything to do with bringing about the sale. The court fairly reviewed the testimony and submitted to the jury the determination of the question, saying: “You will take all those facts into consideration and you will also take into consideration all the facts that the court has overlooked in his charge, because you twelve men are better able to remember all that took place, and if you find that the plaintiff’s contention is true and that the sale was made through his instrumentality and by his efforts, then we say to you your verdict should be for the plaintiff.” The court *393affirmed the following point submitted by the defendant: "A real estate agent does not earn his commission by submitting to the owner of the property a proposition from one with whom the owner had already been negotiating unless it was by reason of the intervention of the agent that the purchaser was ultimately induced to buy the property, and to reach this conclusion in this case you must find that notwithstanding that the defendant first negotiated with the purchaser, he was unable to consummate the transaction without the services of the broker. In other words, you must find, before you render a verdict for the plaintiff in this case, that the plaintiff broker was the immediate, efficient and procuring cause of the resulting sale. Unless you so find, the plaintiff is not entitled to a verdict.” The affirmance of this point is referred to by the fifth specification of error. The appellant does not complain that this is not a correct statement of the law, but asserts that it assumed as a fact that the defendant had been negotiating with the purchaser before the plaintiff became an agent for the sale of the property. We are not convinced that the assumption of that fact was erroneous, in view of the pleadings and evidence. The letter of the defendant upon which any claim of the plaintiff for compensation was founded contained this express notice that he was then engaged in negotiating with a prospective purchaser: “I have one or two parties looking at the property now, but do not know whether anything will come out of it or not.” The plaintiff had himself introduced this letter in evidence, as constituting the contract of his employment The defendant and two other witnesses, at least one of them disinterested, testified, that at the date of that letter and prior thereto, the defendant was negotiating with the officers of the Excelsior Drum Works, who subsequently became the purchaser. This evidence was entirely uncontradicted, and unimpeached, and was not at variance with any proof or admitted facts or with *394ordinary experience, and, having come from witnesses whose candor there was no ground for doubting, the jury ought not to have been permitted to indulge in a capricious disbelief of their testimony: Walters v. American Bridge Co., 234 Pa. 7. The fifth specification of error is dismissed. The burden was upon the plaintiff to establish by the weight of the testimony that his agency was the procuring and efficient cause of the sale of the property, and the remaining specifications of error are without merit.
The judgment is affirmed.