Born 1933 in Rapperswil (CH), lives in Zurich and San Vincenzo (I)
Literature at the Art Library Sitterwerk

Restoration:
Werk Nr. 1619, 1982—1983/1995

bronze, 95 × 102 × 98 cm

Residues of the core and its reinforcements had caused efflorescence. This was removed, and the patina was retouched and preserved with wax.