In reply to Luca Signorelli:
"...the South West Pillar; this was climbed in 1955 by Walter Bonatti, an
Italian and one of the greatest climbers of this century. It was even
more difficult than the face and yet he went on it by himslef. It would
have been a considerable feat for a strong party but as a "solo" effort,
it was incredible."
...
"In the light of these subsequent ascents, Bonatti's achievment seemed all
the more unbelievable."
- Bonnington