delivered the opinion of the Court.

On October 24, 1939 don Jaime Canales Orozco executed ■an open will before Notary Andrés Mena Latorre of Caguas by deed No. 316, at the close of which the notary stated:

“The testator and the witnesses mentioned above appeared at the execution of this will and I, the notary, proceed to read this will aloud, the testator and the witnesses having waived their right to read it for themselves, of which right I advised them, and the testator having seen and heard it and the witnesses having understood it states that it was satisfactory to him without there being the necessity of making- any changes in the will, whereby the toitnesses signed it but not the testator because he stated that he does not know hotv to sign, it being ■signed at his request by the subscribing witness don Pastor Batista. Before me, the notary, attesting that I know the testator, his age, profession and residence and that all the formalities have been carried out uninterruptedly as provided by law and to the contents of this public instrument executed in two sheets of paper including this one. (Signed) — By me as witness and at the reqitest of Jaime Cana-les Orozco, Pastor Batista. — José C. Esterás. — Emilio Puig.— (Marked, signed and sealed) Andrés Mena. The original contains the initials of the zvitness who signed at the request of the testator and the fingerprints of the latter. — ” (Italics ours.)

The testator died on June 1, 1944 and on July 10, 1947 two legitimate children of his first marriage and a grandson, child of another legitimate son deceased, filed the present action against the widow and two granddaughters to whom the testator had left several legacies, alleging that the will was void “because it appear therein that Jaime Canales Orozco did not know how to sign, it being signed at his request by the subscribing witness Pastor Batista, and the truth is that Jaime Canales Orozco, before the execution of this will, at the time of executing the will and after executing it, knew how to sign, read and write. Moreover, although in the will it is stated that it was executed uninterruptedly the truth is that it was not executed without interruption.”

*905The defendants’ answer denied the facts of the complaint and alleged certain defenses. Trial was had and the lower court sustained the complaint and annulled the will on the ground that in its execution subdivision three of § 645 read together with § 636 of the Civil Code, (1930 ed)1 had been violated.

The defendants appealed and alleged that the lower court erred in declaring the will void.

The oral testimony offered by the parties was contradictory as to whether or not Jaime Canales Orozco knew how to sign. That for the plaintiffs was to the effect that he knew how to read and write although very little, and his son Pedro Canales testified that he had taught his father how to sign and write. However, defendant Tirsa Aldea Kodri-guez, testifying as witness for the plaintiffs, admitted that although when she married Jaime Canales Orozco he signed the marriage certificate, yet “recently he could not sign because he was seventy-six years old and was physically incapacitated; he could not hold...”, he was physically unable “to write.” (Page 25, Tr. of Ev.) Furthermore, Pedro Cana-les himself, plaintiff herein, testifying as witness for the defendants, upon being shown a private document of sale pf a piece of land and in which he appears signing for his father, *906stated: “. . . He had been ill many times and could not sign and he called me to sign the documents.” (Page 13, 2nd Tr. of Ev.

The documentary evidence was, if possible, still more contradictory. That for the plaintiffs consisted in a series of documents containing the signature of Jaime Canales Orozco. The oldest one is the marriage certificate of Jaime Canales Orozco and Carmen Belén López Rodríguez, his'first wife, signed on January 3, 1925. Then a private document signed on April 19,1931. There are also several public deeds executed by Jaime Canales Orozco, before different notaries, all signed by him. There is a peculiarity about them, however, and that is that they were all executed during the period between May 18, 1927, the first document, and February 10, 1937, the last. There are also other legal documents bearing the signature of Jaime Canales Orozco, all signed between April 7, 1926 and October 10, 1936.

We must bear in mind that the date of the execution of the open will was October 2lh 1939. All the documentary evidence of the plaintiffs bearing the signature of Jaime Ca-nales Orozco are dated prior to October 24, 1939.

Opposing this evidence, defendants introduced a private document executed on December 5, 1913 wherein Pedro Ca-nales appears signing for his father and a series of public documents executed by Jaime Canales Orozco before different notaries in which he states that he does not know how to sign and does it through a witness, except one wherein he states that he can not sign because he is physically incapacitated to do so and a witness signs for him. These documents also show a peculiarity, and that is that they were all executed between February 16, 1938, the first one, and May 11, 1943, the last. That is since he executed his open will on October 24, 1939 (and even before that date) Jaime Canales Orozco did not execute any other document, according to the evidence, signed by himself. On the contrary, in all those executed subsequent to October 24, 1939, he stated that he did not *907know how to sign and in one of them that he was physically unable to do so. These statements in the deeds are corroborated by oral testimony from both parties tending to show that although Jaime Canales Orozco sometime in his life — knowing at least how to sign — 2 stamped his signature in the documents he executed, since a certain date, February 15, 1938, he does not appear signing any document because due to his advanced age and physical incapacity he was unable to write' his name.

Under these circumstances, can it be maintained that the will executed by Jaime Canales Orozco on October 24, 1939 is void? We think not.

The cases of Ex Parte Planis, 42 P.R.R. 665; Rodríguez v. Rodríguez, 62 P.R.R. 855 and Pacheco v. Heirs of Pacheco, 66 P.R.R. 749, cited by the lower court, because of their facts may be easily distinguished from the case at bar. In the first we held that a document typewritten by another person and merely signed by the testator cannot be regarded as a holographic will. In the Rodríguez case we upheld the nullity of a will executed in imminent danger of death where all or some of the witnesses were not residents of, or domiciled in, the municipality where the will was executed and in the Pacheco case we held that an open will in which no express mention is made of the hour of the execution is void. In all these cases, either the testator or the notary did not comply, in the execution of the will, with the formalities respectively éstablished in Chapter I of Title 3 of Book 3 of the Civil Code (1930 ed.), rendering the will void pursuant to ⅞ 636 of said Code.

In the present case the notary complied with all the formalities required for the open will of Jaime Canales Orozco to be valid. The testator having said that he could not sign, *908the notary stated that one of the subscribing witnesses was signing on his behalf at his request.. He also stated that the testator had stamped his fingerprints, thereby complying with ⅜ 14 of the Notarial Act, as amended by Act No.. 7 of March 23,, 1937, which provides :■

“Section 14. — Should the parties- to the instrument, or any of them, not know how to sign, or- be unable to- do so, the notary shall state the fact, and one of the witnesses shall; sign and affix his initials for the party, and such witness shall precede his signature with a note in his own handwriting that he signs for himself as witness and in the name of the party who does not know how, or- is unable, to do so; Provided, further, That the party or parties to the instrument who do. not know how to. sign or are unable to. d<a so, shall stamp, their finger-prints on each sheet or page.”

We have held in Rosario v. Registrar, 59 P.R.R. 430, 434, that:

“Unquestionably, the legal requisite of stamping the fingerprints is of the utmost importance, since in that way, in so far as the parties, who can not or do not know how to sign are concerned, the lawmaker has succeeded in imparting to the public instrument the seal of indisputable authenticity, in accordance with the latest dictates of science. Indeed, fingerprints can properly take the place of a signature.”

Indeed, the fact that the testator states in an open, will that he did not sign it because he does not know how to. sign, does not mean that the validity of said document c.an not be challenged by showing, as a matter of fact, that the testator actually knew how t° sign and that his failure to do so indicated that he did not wish to sign it. Manresa as well as Scaevqla reach this conclusion in commenting ⅞ 695, of the Spanish Civil Code, equivalent to § 645 of our Code. However, Scaevola commenting this situation states the follow-. !ng:

“. . . That is,' whenever the testator states that he does not know how Qr cannot sign, knowing and being able to do so, it is clear that he does not wish to sign and in this event, it is the *909§atoe ¾¾. if the will lacked the testator’s signature. Ñévérthéless, it may happen, As provided by the Freheh 'CoW't of Cassation in its judgment of May -5> 1831, that although as a general rale to say that he does not know how to sigh when he rfeally does know, amounts to stating in different terms that he does hot wish to sign, howéver, it must be admitted also that fre-qu'éhily a ttieré peasant or laborer who not knowing how to read Or write, has Often Written his n'airfe in c'ertaih papers, may candidly say that tie 'does hot khoW -how to Sigh 5 i& ⅛&⅜. casé the will has always been regarded as the product of the i&téhtiOh of the testator freely and spontaneously expressed.

“There are textwriters who admit that -if the testator, on making his will Was incapacitated to sign it, either because of illness Or of p'afalysiS in th'e hand, and that said incapacity was stated while executing similar authentic documents oh previous oc'caSionS, according to the intention of the testator the phrase inot to 'know kOw should be considered the eijuiVaieht of hot bo %'e ubl&, the more so when it appears that he. was attempting to make a serious and valid will and that the statement is made in .good faith and without the intention of uttering a lie. This. Is Why othér textwriters ratify our foregoing commentaries in the sehste that the ihtehtiOh of "the testator which ’is the guide for Construing all testaméhtafcy clhu'séS rnúSt áls'ó Serve ás thé 'test íñ settling any coMii&'t ¿rising from the failure of ¾⅜⅜ testator to sign the open Will, provided said failure is not properly cured by other means.” {First italics ours;) 1-2 ScaéVóla} Civil Code, page 432.

The 'case at fear May be compared to the one decided More than one hundred years ago by the Court of 'Cassation of France and cited fey Scaevola Under the Civil Code of that nation containing a provision similar to burs;3 Heré the *910testator is a farmer who learns how.to write his name and after having signed several documents he subsequently fails to do so and avers that he does not know how or is incapacitated to do so. The phrase “not to know how” in a case like this is’equivalent to “not to be able”, inasmuch as the evidence warrants such a conclusion. This is not a case where the only document in which the testator states that he does not. know how to sign is his will, and all the rest of the :evidence, oral as well as documentary, shows without contradiction, that he knew how to write or at least sign and that as a matter of fact during his lifetime, he always signed all public or private documents which he executed. This is the case of an illiterate person who learns how to write his name and for several consecutive years until a certain specific year— 1938 — he' signed all the documents in .which he acted • as a party, but that after said year and to his death he signed no other document, stating therein that he did not know how of wás physically incapacitated to do so, having a witness sign for him, while the testator stamped his fingerprints therein in compliance with the law. Under these special circumstances the fingerprints stamped in the open will executed on October 24, 1939, which have in no way been challenged, successfully substitute, together with the signature of the subscribing witness, the signature of the testator. Rosario v. Registrar, supra. The absence of the signature of the testator Jaime Canales Orozco, was duly substituted and his last wish expressed therein should prevail.

As to the second ground for nullity, namely, that the will was not executed without interruption, no evidence was presented in support thereof.

The judgment appealed from should be reversed and another rendered instead dismissing the complaint, with costs. .