This is the well-known phrase -rewritten- from the fairy tale "Snow White": Mirror, mirror, who is fairest of them all? Suggestive proposal that is presented in inverted form, typical of any mirror. And also to show part of the instrument with which it was extended to another space, which is the function of the pantograph (I remember that I had one when I was young). There is a good play of shadows and geometric crosses. The duplication that the mirror should somehow produce is picked up in that of the shadows on this previously empty space.