Does anyone know if this painting still exists?

I recently tracked down a great-grandniece of Richard von Stutterheim. She would like to find out whether the only known painting of Stutterheim still exists. I only know a black and white copy, but the “colorful original” would of course be interesting. Here is the Wikipedia entry and below is the painting.

Tilmann Ziegenhain - tilmann.ziegenhain@googlemail.com