Title: Ferguson, James: 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 In: Idem: The Art of Drawing in Perspective made easy to those who have no previous knowledge of the mathematics (1788). Edinburgh 1803, pp. 115-124, Plate I, fig.1, Plate IX, fig. 1-3.

Part of collection(s): General Works

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