When the testator wishes to make a mystical will, the paper containing the provisions or the paper to be used as an envelope, if there is one, shall be closed, sealed and sealed.
The testator shall present it thus closed, sealed and sealed to the notary and to two witnesses, or he shall cause it to be closed, sealed and sealed in their presence, and he shall declare that the contents of this paper are his will, signed by him, and written by him or by another, affirming, in the latter case, that he has personally verified the wording thereof; he shall indicate, in all cases, the mode of writing employed (handwritten or mechanical).
The notary will draw up, in patent, the act of suscription which he will write or cause to be written by hand or mechanically on this paper or on the sheet which will serve as an envelope and will bear the date and indication of the place where it was made, the description of the envelope and the impression of the seal, and mention of all the above formalities; this act will be signed both by the testator and by the notary and the witnesses.
All the above shall be done immediately and without detracting from other acts.
In the event that the testator, through an impediment occurring since the signing of the will, is unable to sign the act of suscription, mention shall be made of the declaration he has made and the reason he has given.