PLANS and ARCHITECTURAL DRAWINGS

 

Detail of Fig. 3 from Plate 9, “Drawing Instruments &c used in Lithography,” in Every Man his Own Printer: or, Lithography Made Easy:  Being an Essay upon Lithography in All Its Branches... (London: Waterlow and Sons, 1854).

 

Bow pens, such as this one, would have been used to draw the circles shown in this plan.

 

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