still further, for with a mixture of soot and oil he filled the cavities of the engraving he had made, as a preparation for niello, and by pressing damp paper upon it with a roller, obtained impressions on the paper, having, as Vasari says, "Veni vano come disegnate di penna"—all the appearance of drawings done with a pen. Finiguerra was followed by Baccio Baldini, a goldsmith of Florence, who, according to Vasari, employed the eminent artist Sandro Botticelli, to design for him.
Lanzi says in 1801, a pax from the collection of the Grand Duke of Florence, supposed to have been executed by Matteo Dei, an eminent worker in niello in the early part of the 15th century, was taken to pieces to examine the workmanship. The embellishments upon its surface represented the Conversion of St. Paul, and on the niello being extracted, the engraved work was found not at all deep; and ink and paper being provided, twenty-five fine proof prints were struck from it, which were distributed among a few eminent artists and connoisseurs. One of them is now in the collection of the senator Martelli at Florence.
The arts are generally to be traced to a humble origin, and in these works in niello, often discovering little taste, we recognize the cradle of that of engraving on copper, to which engraving on steel has within the last few years succeeded. In the earliest efforts of this kind, the lines produced were comparatively rude and unmeaning, and had nothing more
