Shell was an American Standard color but is no longer made. Your best chance is trying to find a very good condition used one . The suppliers in the 90s in this area were different at that time for American Standard . As I remember Bushkill Supply , and Raub Supply were the suppliers and not currently around .Call Ferguson in Allentown
this is a Google forum or you ask questions about it particular establishment. I know they have a huge selection of items that they can get for you. My toilet and sink set my one bathroom hurry the Shell color. If you call them directly they should be able to answer it. We got ours from East Lawn supply in Nazareth in 1993
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