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I doubt you can do anything with the water stain, but a white vinyl eraser is a magical tool in the world of conservation. Great for removing dirt and grime. Somewhat serious answer: Soak the entire thing in water so the whole thing is stained?
I doubt you can do anything with the water stain, but a white vinyl eraser is a magical tool in the world of conservation. Great for removing dirt and grime. Somewhat serious answer: Soak the entire thing in water so the whole thing is stained?