Pins are made of either brass or iron wire. Those made of the latter are much cheaper, as the price of iron wire varies from three to five cents a pound, while brass wire is usually worth fourteen.
The wire is fed to the machine from large reels. It is first cut into the proper lengths by a small steel knife, so arranged that when the regular length of wire is drawn, the knife descends and cuts it off. Next, each small piece of wire, for we can hardly call it anything else yet, is headed by a sharp rap from a small automatic hammer. Lastly, the blunt ends are pointed by passing over a series of rapidly revolving emery-wheels, and the pin falls, the essentially completed article, into a large box, at the rate of three or four per second.

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