Nova praxis construendi circinum proportionalem horographicum : eoque ritè confecto omnis generis horologia in planis regularibus et declinantibus expeditissimè et exactissimè delineandi, in proximi commodum typis proposita & figuris instructa
A Latin manual on making and using a proportional dialling compass to lay out sundials on regular and declining planes, printed at Vienna in 1695 by the widow of court printer Matthäus Cosmerovius for dial-makers, surveyors and mathematicians. The plates are line-engraved geometric figures: hour lines fanning from a small circle, hatched gnomon triangles, graduated degree scales and letter-keyed construction lines, usable as radial rule patterns, technical line textures and diagram framing.
