Details

A-272

Rule: Dialing

Dialing rule designed by George Serle and made by Walter Hayes. Serle described his instrument and pictured Hayes mathematical insturment in his book.

"Walter Hayes fecit"

England

	Imperial(in)		Metric(cm)
Height			0.1
Width			4.7
Depth			26.8
Diameter
Circumference

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