It's all mixed up with quartz and ought to be milled, by rights, before I even ship it; but since the trucks are going back-well, if it turns out the way I calculate it might bring me forty dollars a unit.
"Shadow Mountain"
Dane Coolidge
"Yes, sir," said Thompson, with a peculiar look as he held the sovereign in his pocket, and ran a finger nail round the milled edge.
"The Star-Gazers"
George Manville Fenn
The Main Reef proper, however, is of too low an ore grade to be profitably worked under present economic conditions, though at two or three mines a percentage of it is milled in conjunction with the richer ore from the other beds.
"Impressions of South Africa"
James Bryce