Shortly before her death Von Bertouch bequeathed a total of 136 works from her personal collection to the Newcastle Region Art Gallery, the biggest art collection bestowed to it in 58 years and valued in the millions of dollars; they were exhibited there in March 2003. In November 2005 350 artworks still in her gallery were auctioned as required by the Uncollected Goods Act of 1995.
Prior to her death, Von Bertouch donated a substantial collection of 136 works to the Newcastle Region Art Gallery, marking the largest art donation in 58 years and valued at millions of dollars. These artworks were exhibited at the gallery in March 2003. In November 2005, another 350 pieces from her collection were auctioned as per the Uncollected Goods Act of 1995.