Two bone? dice

Pair of bone or ivory dice: not quite identical in size or arrangement of numbers. Dots appear to be shallow-drilled.M 6002: 5mm square. Top - 3 (diagonal line of three dots); bottom - 4 (dot in each corner); on sides the following (rolling dice anti-clockwise) - 6 (3 dots each side in parallel), then 5 (dots in corners and one in middle), then 1 (central dot), then 2 (diagonally arranged dots).M 6003: 4.5mm square. Top - 4 (corner dots); bottom - 3 (diagonal dots); on side the following (rolling dice anti-clockwise) - 6, 5, 1, 2.