Two copies of a rectangular ground glass with three measurment markings "56 x 72" "9x12" "4x5" each of the markings have their respective rectangular markings. There is a crosshair in the middle. The brand in unknown. They are most likely used for large format cameras.
Two copies of a rectangular ground glass with three measurment markings "56 x 72" "9x12" "4x5" each of the markings have their respective rectangular markings. There is a crosshair in the middle. The brand in unknown. They are most likely used for large format cameras.
