YOU will recall that I'm now known as Bigfish by some of my grandchildren.
As a result, I've drawn a fish motif to mark all my future paintings and ceramics.
This simple form incorporates my initials, JM, and includes an eye.
From 2020 onwards, every work of art I create will bear this small mark.
In the decades to come, this will be regarded by experts as a sure sign of authenticity and will, of course, affect value.
Beware imitators. This drawing will help you fight off the fakers.
PS The bubbles are not part of the motif. They've been added for effect.