تفاصيل

P-18

"William Herschel's Twenty-Foot Reflecting Telescope"

Bunce, S., Walker, J., Herschel, D. W.

Depiction of telescope with information about reproduction of print in 1976 and original from 1794 in England.

Engraving, Black ink

England

	Imperial(in)		Metric(cm)
Height			25.1
Width			25.3
Depth
Diameter
Circumference

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	Imperial(in)		Metric(cm)
Height			50
Width			35
Depth
Diameter
Circumference

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	Imperial(in)		Metric(cm)
Height			56
Width			40
Depth
Diameter
Circumference

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