But the overview he obtained of the security arrangements was of inestimable importance.

The family band lasted from 1927 to 1943, and it was of inestimable importance to American music.

We're partners in protecting a secret of inestimable importance.

The appointment he was trying to keep had cost him a great deal of time and energy to set up, and it was of inestimable importance to his future.

This is of inestimable importance.' '

One--just one ittle sentence of inestimable importance.

She'd glimpsed something of inestimable importance, only to have it locked away.

Some critics were put off by the publisher's hype of the book, although most readily admitted it was "a work of inestimable historical importance."

There- fore you are of inestimable importance to our histori- ans.

"He was a supporter of inestimable importance to an enormous number and variety of young American composers," Mr. Rouse said.