Geometria subterranea oder Marckscheide-Kunst, darinnen gelehret wird wie auff Bergwercken alle Klüffte & Gänge in Grundund am Tag gebracht, auch solche von einander unterschieden werden sollen ...
Geometria subterranea oder Marckscheide-Kunst is a 1686 German treatise on mine surveying by Nicolaus Voigtel, printed by Johann Dietzel, with its fold-out plates of mining geometry diagrams. Its pictures are precise engraved technical drawings of survey triangulation, measuring instruments, dial compasses, and shaft and tunnel cross-sections, drawn in fine black line on aged paper, offering a designer clean schematic linework, grid patterns, and instrument diagrams to adapt.
