Red dragon

Two years ago we were visiting the Gladstone Pottery museum in Longton, Stoke-on-Trent. I saw this design for a red dragon and took a photo. I think it was a panel explaining the glazing techniques for getting the red colouration. I believe reds are quite difficult to produce?

Red dragons are the symbol for 🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales, but this does not look like it. At the moment I’m trying to create a map for a maze/garden and this is another possibility to base it on. We will see…