Home1997 Treaties and Agreements ...Mali (97-919) – Agreement Concerning the Imposition of Import Restrictions on Archaeological Material from the Region of the Niger Valley and the Bandiagara Escarpment (Cliff) hide Mali (97-919) – Agreement Concerning the Imposition of Import Restrictions on Archaeological Material from the Region of the Niger Valley and the Bandiagara Escarpment (Cliff) TIAS Office of Treaty Affairs September 19, 1997 Cultural Property Agreement signed at Washington September 19, 1997; entered into force September 19, 1997. With appendix. Agreement extending the agreement. Effected by exchange of notes at Bamako September 11 and 17, 2002; entered into force September 17, 2002. Agreement amending and extending the agreement, as extended. Effected by exchange of notes at Bamako September 11 and 17, 2007; Entered into force September 17, 2007. Download attachment [976 KB] Tags Cultural Properties Mali Treaties