caption: The image shows three men in lab coats standing around a counter in a laboratory. The man in the center is sitting on a chair and holding an object in his hand, while the two men on either side of him are wearing spectacles. On the counter in front of them are several jars and other objects, and to the right is a lamp. In the background, there are shelves with bottles and other items, and lights at the top of the image. The image is in black and white.