UTD2879809: Performance in the Teatro alla Scala in Mailand, Italy 1941 (b/w photo) / Bridgeman Images

UTD2879850: Performance in the opera in Rome, Italy 1940s (b/w photo) / Bridgeman Images

UTD2888592: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888617: A guided Tour (b/w photo) / Bridgeman Images

UTD2888626: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888634: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888645: A guided Tour (b/w photo) / Bridgeman Images

UTD2888654: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888669: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888677: A welder bonding different components, Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888681: A bricklayer working, Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888709: A factory in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888719: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888727: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888734: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888749: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888753: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888780: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888795: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888811: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888818: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888836: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888840: A stay at a health resort in Bad Rappenau, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888848: A stay at a health resort in Bad Rappenau, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888859: A stay at a health resort in Bad Rappenau, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888868: A stay at a health resort in Bad Rappenau, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888879: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888891: A trip to Bad Friedrichshall, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888602: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888621: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888636: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888648: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888661: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888672: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888678: A welder bonding different components, Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888682: A bricklayer working, Witten, Germany 1930s (b/w photo) / Bridgeman Images