2 exposures in a single frame

2 exposures in a single frame. On the top part, a portrait of 4 men standing in a line. They all wear shirts and stand close to each other. Everybody but the second on the left side of the picture, looks at the camera. On the bottom part of the negative, portrait of a naked baby lying on a table covered with a tablecloth. The baby is wearing a few adornments. Location: Tamil Nadu, Karaikudi, Vasen Studio. Date of original material: [1954-55]. Size of original print/negative: 4 ¼ x 3 ¼ inches (Quarter). Format of original material: Glass plate black and white negative.