Rough sketch of James Nasmyths' apparatus by which most perfect sound speculae may be cast with absolute certainty

Made:
1879 in Penshurst
maker:
James Hall Nasmyth
"Rough sketch of James Nasmyths' apparatus by which most

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"Rough sketch of James Nasmyths' apparatus by which most
Science Museum Group Collection
© The Board of Trustees of the Science Museum

"Rough sketch of James Nasmyths' apparatus by which most perfect sound speculae may be cast with absolute certainty. Contrived in 1839, and used with great success even since". Signed "James Nasmyth, April 12, 1879" (single sheet 11 1/4" x 8 3/4")

Details

Category:
Astronomy
Object Number:
1932-112
Materials:
paper and complete
Measurements:
overall: 290 x 220 mm
type:
pictorial drawings, metal mirrors and castings
credit:
Science Museum (Great Britain)