sentences:  In the 19th century the Pryms produced the first finished products made not only of brass, but also of steel and iron in addition to the rolled material and wires made of the traditional copper alloys.Under the management of William (1811–83) the company entered a new era of success.His son Heinrich August (1843–1927) did his apprenticeship in Birmingham and used the knowledge acquired there to introduce mechanical manufacturing of metal haberdashery in Germany.