VINTAGE HAZEL ATLAS GLASS COVERED SOAP DISH NADINOLA - eBay (item 400126270785 end time Aug-01-10 21:11:30 PDT)

At the bottom of the page you can see the response I got when I asked about the interior dimensions. My Turkish alum is exactly the same width so I don't want to risk it not fitting, but I think a lot of alum is slightly smaller than mine and thought someone else here my be interested in it...