This is a vintage black and white photograph showing three men engaged in a physical exercise. They are positioned against a dark, draped background, likely a curtain. The men are dressed in what appears to be athletic or exercise attire – light-colored shirts and shorts or trousers. The man in the center is seated, with his legs extended. He is supporting the weight of the man behind him, who is leaning back, arching his back in a backward bend. The third man is lying on the floor, supporting the back of the man bending backwards. The image has a slightly grainy texture, typical of older photographs. Below the image, there is text in German: "Figur 20b. Sitzende Rückwärts-Beugen." The floor is visible and appears to be a textured surface, possibly a mat or rug.