16 U.S.C. § 407m-4Section
§ 407m–4. Erection of replica of Graff House; maintenance
The Secretary is further authorized to erect on the site aforesaid, with donated funds, a replica of the Graff House and to furnish and maintain the same.
(Pub. L. 88–477, §2, Aug. 21, 1964, 78 Stat. 587.)