Uniform Title Treaties, etc. United States, 1997 September 29 Title Cultural property [electronic resource] : memorandum of understanding between the United States of America and Guatemala, signed at Washington, September 29, 1997 with appendix, and agreement extending the memorandum of understanding effected by exchange of notes at Washington, September 20 and 23, 2002, and agreement extending the memorandum of understanding, as extended, effected by exchange of notes at Guatemala, August 23 and 24, 2007.