After a bit of guidance,
ive got some signs to put up in some woodland, simple "Private Woodland Please Keep to the footpath" 3 in total 30x50cm all will be above 8 feet so out of reach of potential damage.
I have decided on 2 options, not a difficult choice i know, its either brass screws or nails,
Which one, i will probably use the same tool for attaching either. 😄