caption: The image shows a black and white photo of a large machine in a factory, with a collage of two pictures. On the left side of the image, there is a watermark, and on the right side, there are a few people standing in front of the machine. At the top of the picture, we can see the ceiling of the factory, and at the bottom left corner, there appears to be a logo. This image is likely from the early 1900s, as it is a stereoscopic view of a gas turbine.