UTD2888675: A guided tour through a factory of fatty acid in Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888693: Craftsmen working, Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888699: Craftsmen working, Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888702: Craftsmen working, Witten, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888717: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888720: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888750: A trip to Liegnitz, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888774: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888777: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888783: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888792: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888813: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888819: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888828: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888834: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888846: A stay at a health resort in Bad Rappenau, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888849: A stay at a health resort in Bad Rappenau, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888855: A stay at a health resort in Bad Rappenau, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888873: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888882: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888885: A trip to Heilbronn, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888894: A trip to Bad Friedrichshall, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888906: A trip to Bad Friedrichshall, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888921: A trip to Bad Friedrichshall, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888924: A trip to Bad Friedrichshall, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888936: A trip to Marbach, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888948: A trip to Marbach, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888957: A trip to Marbach, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888960: A trip to Marbach, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888975: A trip to Gerlingen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888978: A trip to Gerlingen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2888981: A trip to Gerlingen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2889023: A trip to Backnang, Germany 1930s (b/w photo) / Bridgeman Images

UTD2889026: A trip to Backnang, Germany 1930s (b/w photo) / Bridgeman Images

UTD2889041: A trip to Murrhardt, Germany 1930s (b/w photo) / Bridgeman Images

UTD2889044: A trip to Murrhardt, Germany 1930s (b/w photo) / Bridgeman Images