The perimeter of the image will be over 20 metres.
I have already made a feasibility study on the basis of previous
experience. I propose to treat the stone as a rather large photo-etching
plate,inking it up with a black substance and then wiping the surface
clean.
I wondered if anyone on this list would be able to offer any hints on the
basis of their practical experience.
Perhaps Luis could be kind enough to forward this message to the prints
list.
Terry King