Success! I thought it had gone when I got there, but they had rearranged the handbag display. I spotted the navy blue version (of which they were quite a few left) and the lovely one I had seen was tucked right at the back of the hook.
I was so relieved when I saw it, and it was nicer than I remembered. The leather is so soft, you can’t help but touch it. It is very big, has a couple of small open pockets inside and one zipped pocket, and a simple fastener.
So here are some shots of the pretty bag. And my original sketch, I had the handles wrong (there are two not one) but I think I didn’t do a bad job remembering it.