Auction 116, Lot 843

"Mr. Mungo Murray's Armillary Trigonometer", Anon.

Subject: Astronomy

Period: 1755 (dated)

Publication: Gentleman's Magazine,

Color: Hand Color

Size:
4.5 x 7.4 inches
11.4 x 18.8 cm

This interesting engraving shows this ingenious device consisting of five semicircles; viz, meridian, vertical circle, horizon, hour circle, and equator. It was used for resolving many problems in astronomy and spherical trigonometry.

References:

Condition: B

Small abrasion on verso.

Estimate: $75 - $100

Unsold

Closed on 9/20/2006

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