In 1989 we mounted four Aluminium Plates (27x27 cm) exactly to the north, south, east and west of the tower of St.Stephan's cathedral and in a distance of 100 times it's height ( 136.4 meters - same like Cheops Pyramid). If You visit Vienna and bring your compass, You still can find them.

Four Aluminium Plates with engravings -permanently fixed around Vienna

System II System III System IV System V