delivered the opinion of the court.
Delivery is undoubtedly essential to the validity of a bond, whether it be given in perfecting an appeal or.for some other purpose. In providing for statutory bonds, the law usually directs that some official, who is a disinterested third party, shall approve the sufficiency of the sureties executing the same. It is contended in the present case that the omission of the clerk’s approval from the appeal bond, coupled with his assurances to the sureties, avoided all liability on their part to the obligee. The correctness of this contention cannot be conceded.
First. The approval of a statutory bond by a designated *19officer may incidentally operate to prevént unreasonable demands and captious objections. But primarily, this precaution is not for the benefit of the principal obligor or the sureties. Its main, if not its exclusive purpose, is unquestionably to protect the obligee, whether such obligee be an individual or the public. Both principle and authority support the proposition that the delivery of such a bond may, in the absence of affirmative statutory words in effect declaring the instrument without the formal indorsement of approval thereon a nullity, be sufficiently complete, notwithstanding the absence of such official approval, to bind the sureties, where the officer has entered upon the discharge of his duties to the public, or where the obligee has in words or by conduct indicated his satisfaction therewith and through reliance thereon has placed himself in a less favorable attitude. Clarke v. The State, 7 Blackford, 570; Musselman v. Commonwealth, 7 Penn. St. 240; Davis v. Haydon, 3 Scam. 35; Bartlett v. Willis et al., 3 Mass. 85; Young v. The State, 7 Grill. & J. 253; McCracken v. Todd, 1 Kans. 148; People v. Edwards, 9 Calif. 286; Burgess v. Lloyd, 7 Md. 178; Jones v. The State, 7 Mo. 81; Skellinger v. Yendes, 7 Wend. 306.
Most of these cases relate to the bonds of public officers. But Mr. Murfree in his excellent work on Official Bonds at sec. 36 classifies appeal bonds, replevin bonds, and the like with technical official bonds and declares them, in the absence of statutory differences, subject to the same general rules of law. Certainly the omission of a formal approval ought not to affect - the rights of the - individual obligee as against the sureties more injuriously than it does those of the people in suits upon public official bonds.
The same author at sec. 48 says: “ And in like manner the approval-of the bonds of officers generally by the appropriate tribunal -is necessary, not to the validity of the bonds, but to the -right of the officers to exercise the powers, and discharge thé duties of their offices. In this, 'however, as in other cases, acceptance of the bond may be presumed *20from the action, or, in proper cases, the inaction of the officer or court; thus the acceptance of a bond duly offered by an administrator will be presumed from the issuance of his letters of administration.” And at sec. 59 he makes the following observation: “ It is safe to say, however, that no law which requires of an official person the duty of examining and approving an official bond can be so far mandatory as that his neglect to discharge his duty can release the obligors in such bond from the liability they incur by its execution, if under it the office has been assumed and duty performed or neglected.” Finally, at sec. 82, he declares that, “ If a statute, in prescribing that a bond shall be given in certain legal proceedings, as for an appeal, requires that such bond, to be valid, shall be approved by the court, it is nevertheless competent for the party in interest to waive such approval, and if that waiver be duly made to appear, the bond is fully as valid and obligatory as it would have been if the statute had been literally followed,” citing Ester v. Acklemeyer, 81 Ind. 163; Smock v. Harrison, 74 Ind. 348, and other cases.
With reference to the last foregoing proposition, we observe that while in each of the cases cited by the author to support the same, there appears to have been an affirmative verbal or written declaration of the obligee concerning the sufficiency of the sureties, the rule must a fortiori apply in cases where the obligee’s satisfaction is quite as clearly expressed by conduct instead of words.
Had the clerk of the county court transmitted the case to the appellate tribunal without any formal approval of the bond, either by himself or the court, and had plaintiff in error without objection proceeded to trial de novo, the approval would probably have been either presumed from the conduct of the clerk in'filing the bond and transmitting the case or treated as waived by the conduct of plaintiff in error. The understanding between the sureties and the clerk of which plaintiff in error was ignorant, would not in such case have been permitted to .cancel the liability of the sureties to him.
*21Second. We do not, however, predicate our decision in the ease at bar upon the foregoing grounds. For while the elerk. omitted to indorse*his approval upon the bond in suit, it appears that the court by a subsequent order at the same term modified the clerk’s authority in the premises and approved the bond himself. The statute simply directs the approval by the court or clerk; it does not specify the manner of approval. That the court had power at the time this action was taken to annul or modify its former order both as to the official who should approve the bond and as to the time of approval, there can be no doubt. But counsel contend that by virtue of the conference and understanding between the clerk and defendants in error, the latter’s signatures were in legal effect erased from the instrument, and hence the subsequent action of the court in the premises could have no binding operation upon them.
Under the circumstances here presented, we are clearly of the opinion that defendants in error are estopped from questioning the validity of the bond. They voluntarily executed this instrument as sureties, even attaching their justifications thereto. They then of their own free will unconditionally delivered it to one of the Kings, a principal and co-obligor therein, well knowing the use for which it was designed and the liability to be incurred. King, as they undoubtedly supposed he would, unconditionally delivered it to the clerk of the county court for the purpose of perfecting his appeal. Thus there were neither conditional nor escrow features connected with the original execution or delivery. The bond was filed by the clerk, an act that should be performed only after approval, and which may be taken as prima facie evidence of the intent to approve. Subsequently the court, being entirely ignorant of any effort on the part of defendants in error to procure a release from liability, on motion of the appellants and principal obligors, entered the order approving the same nunc pro tune as of the date of filing. Defendants in error made no effort to remove the instrument from the files, or to procure an order of release, or to notify *22plaintiff in error, the party most concerned, of their desire to avoid liability or attempted withdrawal. They rested content upon the clerk’s assurances. Nor did plaintiff in error have any notice or knowledge otherwise of their wishes, or conduct. There was nothing on the face of the instrument or proceedings to fairly put him upon inquiry, and he was justified in assuming, even if aware of the delay in connection therewith, that the approval by the court obviated any question touching the validity of the obligation in this respect.
Plaintiff in error was seriously injured by the conduct of defendants in error in the premises. Relying upon the sufficiency of the bond, he refrained from proceeding to collect his judgment and in good faith in the district court re-litigated the cause de novo. The bond was, whether rightfully or wrongfully we do not determine, instrumental in the discharge of his attachment levy and garnishee process. We are not informed of the financial condition of his judgment debtors when the appeal was taken, but if it be assumed that they were then insolvent and that he could not, even aided by his attachment proceeding, have collected his debt, yet he incurred large additional expense and annoyance as well as loss of time in conducting the further litigation. If a case could ever arise where in this connection an application of the doctrine of estoppels in pais is justifiable, the present would seem to be such a case.
We are aware that there are decisions announcing views apparently in conflict with the foregoing; notably, People v. Bostwick, 43 Barber, 1, afterwards affirmed by the court of appeals. But we are fully sustained on principle by State v. Peck, 53 Me. 284, Millet v. Parker, 2 Metc. (Ky.) 608, and Brown et al. v. Murdock et al., 16 Md. 521. These opinions, especially the one in State v. Peck, review in extenso the cases bearing upon the subject. The opinion in Millett v. Parker is severly criticised in People v. Bostwick; but the learned judge who pronounced the views of the court in State v. Peck in turn ably challenges the reasoning in People *23v. Bostwick and shows that the authorities there relied on fail to support the doctrine announced.
Our conclusion is, that when the surety voluntarily executes an appeal bond and delivers it unconditionally to the principal therein named, and the principal without condition delivers it to the clerk, who receives it and files it, and it is during the same term approved by an order of court, if appellee, without fault on his part, retying upon its validity in good faith litigates the appeal, and incurs additional labor and expense, the sureties are estopped from setting up in a suit by appellee an agreement with the clerk or appellant, of which appellee had no notice or knowledge.
There is no disposition to undervalue the importance and usefulness of statutory provisions relating to the approval of bonds. We do not intimate that these provisions are directory merely. We simply hold that in the absence of an unmistakable legislative intent to make the approval an absolute sine qua non to the validity of the bond for any purpose, this statutory provision is not so far mandatory as to become a shield for the protection of actual or constructive fraud.
We shall refrain from property characterizing the conduct of the clerk of the county court in the premises. It is to be hoped that there are palliating circumstances not shown by the record. His officious advice to defendants in error against remaining sureties, and his failure to notify plaintiff in error or the court of his understanding with the sureties, are deserving of censure. He should not have filed the bond before its approval, or have transmitted the cause to the ‘appellate court without explanation. He misled defendants in error who were doubtless acting in good faith, and is largely responsible for the present litigation with its attendant expense.
The judgment is reversed and the cause remanded.
Reversed.