The Louis C. Tiffany Garden Museum
Matseui, Japan: On the north shore of Lake Shinji is the Louis C. Tiffany Garden Museum. The museum has over 200 items on display by master of decorative art Louis C. Tiffany, as well as a traditional English style garden that looks out over the lake.
The Garden Museum owns a "Pond Lily" lamp similar to the Macklowe Gallery lamp. This is the only example of such a lamp outside of the United States as far as we know.