noble metal

But now, at the first and yet final trial, she is proved and found to be of noble metal.

It is well said; but the last letter to Frank Scott is scarcely of a noble metal.

It is well said; but the last letter to Frank Scott is scarcely 210 of a noble metal.

There was a noble metal collar—about thirty-two, the size would have been, on the usual scale.

A natural alloy of gold containing 20 per cent silver, termed electrum, is the lowest grade of the noble metal.