Will of Hawkinson: Hawkinson v. Oatway, 143 Wis. 136. point that mere proof of the signatures of the subscribing witnesses to a will was insufficient, especially where the will is signed by mark, they cited In re Burbank, 93 N. Y. Supp. 866, affirmed 185 N. Y. 559; Peck v. Cary, 27 N. Y. 9, 24; Jackson v. Vickory, 1 Wend. 406; Jackson v. Le Grange, 19 Johns. 386; Jackson v. Luquere, 5 Cow. 221; Claflin's Will, 73 Vt. 129, 50 Atl. 815; Stephens v. Stephens, 129 Mo. 422, 31 S. W. 792; More v. More, 211 Ill. 268; Gould v. Chicago T. Sem. 189 Ill. 282; Hobart v. Hobart, 154 Ill. 610; Mead v. Presbyterian Church, 229 Ill. 526; 1 Underhill, Wills, § 201; Dayton, Surrogates, 163; Halstead's Estate, 101 N. Y. Supp. 971; Cottrell's Will, 95 N. Y. 329, 338; Sizer's Will, 113 N. Y. Supp. 210; Hyland's Will, 27 N. Y. Supp. 961; Kane's Will, 20 N. Y. Supp. 123; Smith's Will, 15 N. Y. Supp. 425; Jones v. Roberts, 96 Wis. 427. For the respondent there was a brief by Carey & McDaniel, and oral argument by J. K. Carey and C. F. McDaniel. DODGE, J. The judgment is prima facie erroneous because not supported by the findings. Before a will can be admitted to probate and before there can properly be any conclusion of law that an instrument "is the last will and testament" of any one, it is essential that the court must be convinced that the testator signed it in the presence of witnesses and that they attested with the formalities prescribed by law. The trial court is required by statute to make written decision declaring his finding on this subject. Young v. Miner, 141 Wis. 501, 124 N. W. 660. Why the trial court should have refrained from performing this duty, or counsel entering the judgment should not have at least requested a finding on this vital question, essential to the record validity of their judgment, is not apparent. Nevertheless, however erroneous the procedure, we may refrain from revers Will of Hawkinson: Hawkinson v. Oatway, 143 Wis. 136. ing a judgment based thereon if it is clear that justice has been done. Brown v. Griswold, 109 Wis. 275, 85 N. W. 363. The concrete question is whether, upon proof of the authenticity of the signatures of deceased or necessarily absent attesting witnesses, there is a legitimate inference or presumption of fact that those acts which they purport to attest did occur. Those acts include the signing or acknowledgment by the testator in the presence of the witnesses, his declaration of his purpose, his request to the witnesses to attest, and their signing for that purpose in his presence and in presence of each other. It is undeniable that an affirmative answer to this question in its broadest scope has been repeatedly declared, in words at least, by this court. Meurer's Will, 44 Wis. 392, 399; Lewis's Will, 51 Wis. 101, 113, 7 N. W. 829; Allen v. Griffin, 69 Wis. 529, 536, 35 N. W. 21; O'Hagan's Will, 73 Wis. 78, 82, 40 N. W. 649; Gillmor's Will, 117 Wis. 302, 94 N. W. 32; Hanley v. Kraftczyk, 119 Wis. 352, 361, 96 N. W. 820; Arneson's Will, 128 Wis. 112, 116, 107 N. W. 21. However, it is also true, as appellant urges, that in none of those cases was the effect of such evidence to prove the fact of signing by the testator necessarily involved, because in each of them the fact was either undisputed or otherwise established. As a result the conclusiveness of such utterances is perhaps open to debate. But when the court of last resort has persistently declared approval of a rule of law, it should not lightly be ignored, especially when, in presence of conflicting decisions in other jurisdictions, such declarations amount to adoption of the views of those courts approving the rule. In the light of what has been said, are we justified in departing from the rule and policy of the past? Appellant contends that our cases overlook the fact that in case of wills their validity and existence depend on two facts, namely, execution by the testator and attestation with certain formalities by witnesses. He insists that proof of the au Will of Hawkinson: Hawkinson v. Oatway, 143 Wis. 136. thenticity of the witnesses' signatures justifies no inference further than that they wrote them with the proper formalities. In other words, that they merely attested. To this limitation are cited numerous very direct decisions by the New York courts. Such cases, however, are all predicated on statutes of that state to the effect that if subscribing witnesses are dead the will may be established on proof of handwriting of the testator and of the witnesses and under such circumstances as would be sufficient to prove the will on the trial of an action. This is held to require, in the conjunctive, proof of authenticity of both the testator's and the witnesses' signatures, and thus to limit the inference or presumption to the regularity of other acts. Jackson v. Luquere, 5 Cow. 221; Jackson v. Vickory, 1 Wend. 406; Jackson v. Le Grange, 19 Johns. 386; Peck v. Cary, 27 N. Y. 9; Burbank's Will, 104 App. Div. 312, 93 N. Y. Supp. 866, affirmed 185 N. Y. 559, 77 N. E. 1183. The New York cases seem to have been followed, without noticing the statute, in Claflin's Will, 73 Vt. 129, 50 Atl. 815, where, however, there was no decision that the testator's signature could not be presumed from the attestation. Certain other cases cited by appellant declare a presumption in favor of due execution to arise upon proof of authenticity of signatures of testator and witnesses, but do not expressly negative such presumption from witnesses' signatures alone. Gould v. Chicago T. Sem. 189 Ill. 282, 59 N. E. 536; More v. More, 211 Ill. 268, 71 N. E. 988; Mead v. Presbyterian Church, 229 Ill. 526, 82 N. E. 371. In one case not cited is declared necessity of proof of a maker's signature in addition. It seems to be merely a ruling by a justice on a trial, and not a decision on review or after deliberate consideration. Collins v. Nicols, 1 Harr. & J. 399. The decisions in New York are, by reason of their statute, of little or no weight in Wisconsin, where we have no statute to modify general rules of evidence in case of contested wills, sec. 3788, Stats. (1898), having no application. Will of Hawkinson: Hawkinson v. Oatway, 143 Wis. 136. Jones v. Roberts, 96 Wis. 427, 432, 70 N. W. 685, 71 N. W. 883. We have, therefore, to consider the effect of proof of authenticity of the signature of an attesting witness in case his presence or memory is not obtainable. It is not questioned that it supports prima facie an inference of the attestation required by will statutes. That is declared in cases cited by appellant and generally. 2 Wigmore, Ev. §§ 1505, 1511. Upon the question of the further fact of execution by testator, admissibility and effect are controlled by the rule that in absence of primary evidence the best evidence obtainable is admissible and must be produced. The ancient rule was that, when an instrument was attested, the best and only evidence was that of the attesting witnesses. When they were gone, after first doubting if the document could be proved at all (2 Wigmore, Ev. § 1287), it was concluded that their solemn act in joining by attesting contemporaneously the very instrument was admissible as their declaration of the facts therein declared expressly or by implication, under a relaxation of the anti-hearsay rule indulged in deference to necessity and in order that duly executed instruments might not frequently fail of proof. 2 Wigmore, Ev. §§ 1306, 1505, 1506, 1511; Adam v. Kerr, 1 Bos. & Pul. 360; Losee v. Losee, 2 Hill (N. Y.) 609; Greenough v. Greenough, 11 Pa. St. 489; Clark v. Boyd, 2 Ohio, 56; Kirk v. Carr, 54 Pa. St. 285, 290; Boyeus's Will, 23 Iowa, 354, 357; Murdock v. Hunter's Rep. 1 Brock. 135, Fed. Cas. No. 9,941; Garrison v. Owens, 1 Pin. 544. This view is held by the great majority of courts with regard to all documents bearing attestation whether required by law or not, and in many jurisdictions the view that the written. attestation is the best evidence in absence of the witnesses has led logically to the holding that no other evidence of testator's signature is admissible. 2 Wigmore, Ev. § 1320. Such technical exclusion of other evidence of the authenticity of a grantor's or maker's signature has not been general, and Will of Hawkinson: Hawkinson v. Oatway, 143 Wis. 136. several courts have concluded that other proof of authenticity is superior to the hearsay declarations of witnesses to instruments not required by law to be attested. Tagiasco v. Molinari's Heirs, 9 La. 512; Chaffe v. Cupp, 5 La. Ann. 684; Shiver v. Johnson, 2 Brev. (S. C.) 397. As to wills, however, the rule seems to be general, except for the decisions. above mentioned, that the attestation itself is prima facie proof of all facts essential to due execution, to which attesting witnesses could depose if present, including the authenticity of testator's signature, whether autographic, by mark, or in handwriting of another, also his volition in signing and his mental capacity and understanding of his act. Hays v. Harden, 6 Pa. St. 409, 412; Greenough v. Greenough, supra; Barker v. McFerran, 26 Pa. St. 211; McKee v. White, 50 Pa. St. 354; Leckey v. Cunningham, 56 Pa. St. 370; Snider v. Burks, 84 Ala. 53, 4 South. 225; Stevens v. Leonard, 154 Ind. 67, 76, 56 N. E. 27; Carpenter v. Denoon, 29 Ohio St. 379, 391; More v. More, 211 Ill. 268, 71 N. E. 988; Scott v. Hawk, 107 Iowa, 723, 77 N. W. 467; Eliot v. Eliot, 10 Allen, 357; Nickerson v. Buck, 12 Cush. 332; Farleigh v. Kelley, 28 Mont. 421, 72 Pac. 756; Clarke v. Dunnavant, 10 Leigh, 13; Murdock v. Hunter's Rep. 1 Brock. 135, Fed. Cas. No. 9,941; Croft v. Pawlet, 2 Strange, 1109; Wright v. Tatham, 1 Ad. & El. 3. In view of this array of authority and the reasons underlying it, we are not at all inclined to change the attitude of this court so long and so persistently declared, even though such declarations were not entirely necessary to decision of the cases wherein uttered. An objection that a signature by mark is not within the general rule, but should be supported by further proof, is overruled by many of the cases cited. Under the reasons of the rule as stated, the attestation quite as much declares that the testator made the mark as and for his signature as that he wrote the letters spelling his name when that appears. Indeed some courts which would require further proof of the |