تفاصيل

P-123a

"La Gnomonique Universelle, par une seule regle."

Bourgoing, le F. P. Charles, Jollain, Gerard

Four diagrams demonstrating a method for determining the solar hours.

Engraving, Black ink, Letterpress

France

	Imperial(in)		Metric(cm)
Height			49.6
Width			37.8
Depth
Diameter
Circumference

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	Imperial(in)		Metric(cm)
Height			53.4
Width			42.6
Depth
Diameter
Circumference

	Imperial(in)		Metric(cm)
Height
Width
Depth
Diameter