Double studio portrait on one negative

Double studio portrait on one negative. On the top picture, two women in sari. They both look at the camera. On the bottom photo, the same two women in sari. They have only very light jewellery. They both face the camera. No backdrop. Date of original material: [1953]. Size of original print/negative: 3 ½ x 2 ½ inches (2B). Format of original material: Glass plate black and white negative.