1.   Wherever possible use authentic contemporary material.

2.   Authentic material objects like the phonograph help, too, especially if they can be handled.

3.   But the photos of the costumes in the book have all been restored with authentic materials.

4.   Collecting authentic material is, of course, becoming more difficult as time takes its toll on remaining Old Western types.

5.   Here is a sophisticated singer infusing so-called authentic material with its essence rather than treating it as an art song.

6.   Naturally, the authentic material becomes stylized and Taylorized.

7.   He said museums in the rest of the country are eager to display the authentic materials that the Smithsonian has.

8.   Museums nationwide are eager to display authentic materials owned by the Smithsonian, he said.