Purple for polio

When we moved into our house I decided I wanted to fill it with artworks. I use the term artwork in the loosest possible sense, to include many interesting curios that Herbie and I make at various workshops and on rainy days at home. But I’m also including a few more professional pieces.
This is my latest acquisition; untitled by David McCart. David is one of the artist involved in the sand art which I have previously blipped.
It is purple as it was part of a donated exhibition of purple things, sold to raise money for a polio charity.