John M. Batchelder's 1911 Single Point Radial Mapping of Massachusetts LocationsI was drawn to this just formally all those radial lines, with handwritten locations running along them, and a satisfying interplay of red and black and gray ink, and some blue and brown smears too, against the white card cut into a semi circle. The locations are mostly familiar ones to anyone from MA: Walpole, Milton, Medway, Foxboro, etc. I believe this would be described as a single point radial survey map, here completed facing due east, which I