UTD2892441: Snowed in woods and forests around Oberhof in Thuringia, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892442: Snowed in woods and forests around Oberhof in Thuringia, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892444: Purification plant for sewage water recycling, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892449: At the absorbing wells at a purification plant, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892482: Two women with ceramic goods from the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892483: Two women with ceramic goods from the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892491: Pots to be fired at the courtyard of a pottery at the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892496: Pots to be fired at the courtyard of a pottery at the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892500: A woman with ceramic goods from the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892504: Two potters unloading their furnace at the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892505: Potters at their great furnace at the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892508: A potter at work at the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892523: Coffee pots to be fired at a pottery at the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892532: A woman with ceramic goods from the village of Goerzke in Brandenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892549: Knipser's quadruplet girls with their doll's prams, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892554: The Knipser's quadruplet girls with their mother, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892556: One of Knipser's quadruplet girls playing at the garden, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892564: The Knipser's quadruplet girls playing at the garden, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892573: The Knipser's quadruplet girls playing at the garden, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892587: One of Knipser's quadruplet girls playing at the garden, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892591: One of Knipser's quadruplet girls playing at the garden, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892594: Grandmother is doing the washing of Knipser's quadruplet girls, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892595: Grandmother is doing the washing of Knipser's quadruplet girls, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892603: Knipser's quadrupet girls with their elder siblings, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892608: Knipser's quadruplet girls with their doll's prams, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892610: Knipser's quadruplet girls with their doll's prams, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892612: Knipser's quadruplet girls with their doll's prams, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892615: Knipser's quadruplet girls with their doll's prams, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892622: One of Knipser's quadruplet girls with her father, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892624: The father of Knipser's quadruplet girls is a carpenter, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892630: The Knipser's quadruplet girls with a storybook, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892641: A nurse visiting the family of Knipser's quadruplet girls, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892667: A patient in a therapeutic bath, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892669: A patient in a therapeutic bath, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892678: A fisherman preparing the nets for fishing in the Baltic Sea, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892682: Fishermen on their fishing boat, Germany 1930s (b/w photo) / Bridgeman Images