Texas Estates Code - EST § 1163.004. Method of Proof for Securities and Other Assets

(1) an official letter from the bank or other depository where the securities or other assets are held for safekeeping, and if the depository is the guardian, the official letter must be signed by a representative of the depository other than the depository verifying the annual account;

(2) a certificate of an authorized representative of a corporation that is surety on the guardian's bonds;

(3) a certificate of the clerk or a deputy clerk of a court of record in this state; or

(4) an affidavit of any other reputable person designated by the court on request of the guardian or other interested party.

(1) state that the affiant has examined the assets that the guardian exhibited to the affiant as assets of the estate for which the annual account is made;

(2) describe the assets by reference to the account or in another manner that sufficiently identifies the assets exhibited; and

(3) state the time and the place the assets were exhibited.

(1) additional evidence of the existence and custody of the securities and other personal property as the judge considers proper; and

(2) the guardian at any time to exhibit the securities to the judge or another person designated by the judge at the place where the securities are held for safekeeping.