It was in 1973, at Balatonboglár, that the reflection and transparency
of a pane of glass provided the first natural opportunity. Placed on
top of a photograph of a face, it distorted the image to various degrees,
depending on the angle from which we looked at it.
Changed Point of View
The next work of mine pointing in the same direction was something I did in 1975. It was called Window-Mirror. (I used a mercury-plated automobile windshield, and the person sitting inside could look at himself in the bent mirror of the glass.)