In reply to kingjam:
Looks a bit like the south side of the Odla di Cisles and the Sass de Mesdi in the Odler/Geisler group.
If correct, the main peak in your photo would be the Mesdi. Its Southwest Ridge is IV and ten pitches in the 2005 AC guide, V- and thirteen pitches in the 1988 one; Dibona, Huter, Jahn, Eller - 1917. The later guide mentions a gap between the main face and a subsidiary pillar on its sixth pitch; could this be the location of your memorable step?
Post edited at 18:50