VII 15 Din 14 , by hanne darboven , 1989 , installation , Conceptual Art style
A calendar that is on a white wall.
A grid of nine rows and six columns is displayed on a white wall. Each row has a grid of small squares with numbers on them. The first row has the numbers 1 through 12 on it. The second row has numbers on it and the third row has two rows of numbers. The last row has writing on it that is not visible in the image.