The Description of a Machine, by which any Person may delineate the true Perspective Figures of Objects, without having learned any of the preceding Rules
Title: The Art of Drawing in Perspective Made Easy to Those Who Have no Previous Knowledge of the Mathematics. A New Edition. Illustrated with Plates
Author: James Ferguson
Date: 1803
Type: bookSection
Pages: pp. 115-124, Plate I, fig.1, Plate IX, fig. 1-3
Place: Edinburgh
Download: https://content.mpiwg-berlin.mpg.de/mpiwg/online/permanent/vision/pdf/Ferguson_ChapIII_1803.pdf