In the Temporary Exhibition Building (former KONI) Sonobudoyo Museum held the Mataram Keris Festival. This event is a collaboration between Sonobudoyo Museum and the Keris Lar Gangsir Community. There are two agendas of this activity, namely the Mataram Keris Exhibition and the Mataram Keris Exchange. The Keris Mataram Exhibition with the theme "Mataram Keris from Time to Time", was exhibited on November 1-7, 2019, at 09.00-21.00 WIB. As for the Mataram Keris Exchange on 1-3 November 2019, 09.00-21.00 WIB.