The symbol is in the post. Didn't you see it? Dots 2346. What are you transcribing? Is this a German foreign language book for someone taking a course? Somthing else? These'a lot to be aware of in foreign language braille besides a few symbols.
The Interim Manual is a must-have for foreign language transcribing. It is available for a small charge to NBA members. Inquire at the NBA office.
Let us know if we can be of further assistance.