Thanks John...you are the man. I believe the product number is HL177.

Unfortunately I do not have a black light. I would purchase one but I would rather give my money to Bill Younger.

I do not think sunlight is the culprit as I have not exposed the piece in any direct light. My curio has limited space so I rotate the lighthouses every 3 or 4 months. They are under wraps in the box when not in use.

Apprentice Wacko