A text-book of geometrical drawing, for the use of mechanics and schools, in which the definitions and rules of geometry are familiarly explained .. (1850)
Minifie, William, 1805-1880. [from old catalog] · Baltimore, W. Minifie & co. · leaf 162
transparentall the edges and sides could be seen. The apparent oppositeangles in each side are equal, tw^o of them being 120°, and theother two 60°; all the opposite boundary lines are parallel to eachother, and as they are all of equal length may be measured byone common scale, and all lines…
