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Rh of the sixteenth century. It might have been supplanted by Roman characters in Germany, if there had not been at this time a strong prejudice against Roman customs and fashions of all kinds. Attempts at change were frequently made, but they were always unsuccessful.

The steel bought for the type-foundry of the Ripoli Press was probably intended for punches. The use of this metal in other type-foundries may be inferred from the sharpness, when new, of many fonts of early types. That the moulds were of brass is indicated by the allusions of early writers and printers to types made in brass. The matrices were of copper, but it is not probable that they were struck in cold metal, for it required great force and still greater discretion to strike the punch truly, and the risk of breaking it had to be hazarded. For the matrices of the large types of Gutenberg's Bibles and the Psalter of 1457, copper softened by heat should have been, and probably was, provided.

When the secrets of type-making had been divulged, the printers who found difficulties in making or buying matrices tried to evade its necessary conditions and cheapen its processes. The types of wood with holes for wire, described by Specklin and others, must have been punches of wood which had been made in the belief that it would be cheaper to cast words than to cast and compose single letters. The matrices of lead noticed by Enschedé were probably made by striking the punch of wood in half-melted metal, after the process described by Didot. The punch of wood, burned by contact with hot metal, was repaired, altered and renewed; the matrix of lead, clogged by the adhesion of metal, became defaced, and was soon worn out. Every change in punch or matrix produced a corresponding change in the cast type.