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W├╝rttembergische Metallwarenfabrik A.G., WMF
WMF was originally called Metallwarenfabrik Straub & Schweizer and was opened as a metal repairing workshop. Around 1900, they were the world's largest producer and exporter of household metalware, mainly in the Jugendstil, or Art Nouveau style. They are best known for the period of Albert Mayer, sculptor and designer, who was director of the WMF Art Studio from 1884 to 1914.

In 1880, it merged with another German company and became known as the Württembergische Metallwarenfabrik. WMF acquired the Polish metalware factory Plewkiewicz in Warsaw in 1886, which then became a subsidiary of WMF around 1900. During this period, the WMF employed over 3500 people. In 1890 they acquired the Kunstanstalt für Galvanoplastik München, which specialized in electrotyping and electroforming of large and small statues for buildings, fountains, tombstones, and gardens; this became the Abteilung für Galvanoplastik (Galvanoplasatic Division) of WMF.[1] During the 1920s, Abteilung für Galvanoplastik was producing reproductions of large-scale Italian Renaissance bronze works for an American clientele. Albert Weiblen Marble & Granite Co., Inc. of New Orleans pursued the acquisition of a gilt copper reproduction of Ghiberti's "Gates of Paradise". In 1910, the Reale Istituto di Belle Arti had granted WMF the exclusive right to take a sharp cast of the original doors, from which WMF created a reproduction that was exhibited at the International Building Trades Exhibition in Leipzig (1913).[2] WMF produced a trilingual catalog about the doors, titled Erztüre des Hauptportals am Baptisterium in Florenz.

In 1900, WMF acquired Albert Köhler's famous Austrian metalwork company AK & CIE, who produced and distributed WMF items under their mark to the Austria-Hungarian market until about 1914. WMF purchased Orivit AG, a company known for its Jugendstil pewter in 1905, followed a year later by the purchase of the Orion Kunstgewerbliche Metallwarenfabrik, another German metalware company. WMF continued to use the goods from the acquired companies on their own markets, and conversely, they produced and distributed their objects under their acquired companies brands.
During the war it mainly repaired aircraft , especially different versions of the Do 217