New Signature as of June 2020June 16, 2020

I have been signing my artwork as ‘Hartz © year’ since 1976 which was my first professional exhibition at the David Gallery in Akron Ohio. I showed two suites of prints. I have exhibited almost every year since then. Below I have attached my exhibition lists a .pdf.
As of June 2020 I will be signing my work D. Hartz © year or David Hartz © year. This is being done because my brother Jon Hartz and my nephew Ryan Hartz have been creating artwork as well. Jon has been creating small sculptures from recycled materials and Ryan has been painting murals, rocks and other materials.
I have spoken to them both and we all agree to sign our works with our first initial or first name as well as our last name to keep things clear.
Thank you,
David Hartz