Page:De Vinne, Invention of Printing (1876).djvu/400

390 to the success of Gutenberg's new invention. The expected profit was attractive, but it was not the only advantage.

In that century it was not an easy matter to learn an art or a trade of value: no one could enter the ranks of mechanics even as a pupil, without the payment of a premium in money; no one could practise any trade unless he had served a long period of apprenticeship. These exactions hopelessly shut out many who wished to learn; but men who had complied with all the conditions were often unwilling to teach, or to allow others to practise. Many trades were monopolies. In some cases they were protected by legislative enactments, like that accorded to the Venetian makers of playing cards. So far as it could be done, every detail of mechanics was kept secret, as may be inferred from the old phrase "art and mystery," still retained in indentures of apprenticeship in all countries. One of the consequences of this exclusiveness was that many mechanical arts were invested with unusual dignity. The sharply defined line which, in our day, separates art from trade and mechanics did not then exist.

The testimony shows that Gutenberg had a knowledge of three distinct arts. The one earliest practised, from which Dritzehen derived a good profit, was the polishing of stones or gems. The second, was that of making mirrors. Gutenberg was not the inventor of this art, but he was one of the