well there will always be an angle from the eyes to the mirror, so the person behind the two way mirror would see a mirror reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror...
reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror, reflecting a mirror. of course until the reflection was of the wall behind/above the other mirror.