What length do you guess the nanny is ?

eleven inches

I'm reckon 9, or a little over, I've been fooled by horns with no hook before.
Don't think you did a ground measure to find out though Weathered.

There was another nearby that was larger I think approaching 10 easily

Not many willing to have a crack either..I only had a guesstimate as the closest i have come to a chamois is when i washed the old mans car 45 years ago.

Compared your one to the one on my wall - mine is a shade over 9 1/2" but has better hooks .

I suspect your is in the 9-10" range.

Arent they neat animals to watch ?