F.R.E. 803(16)

Rule 803. Exceptions to the Rule Against Hearsay—Regardless of Whether the Declarant Is Available as a Witness

The following are not excluded by the rule against hearsay, regardless of whether the declarant is available as a witness:

…

(16) Statements in Ancient Documents.

A statement in a document that was prepared before January 1, 1998, and whose authenticity is established