For the record, I have been making maps professionally for 16-20 years, and I have never used cross-hairs to show locations on my maps. I would not use that symbol casually, nor would I try and convince you after the fact that it’s just a surveyor’s mark.
I do use circled cross-hairs as registration marks on the edges of my big, color maps, to make sure the color plates line up perfectly; they get trimmed off after printing, before the maps are folded.
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