Not my memory : When I was a kid and a store went out of business, it's windows were whitewashed like this for privacy of the empty space. Even though this pin is a painting, it immediately brought to mind this memory.
Marbled Paper Designs by Various Artists. All images come from the University of Washington Decorated and Decorative Paper Collection. First image: Vintage c. marbled paper, Spanish moiré on Turkish with Gold vein pattern. Vintage c.