A John Dunn brass graphometer,  Scottish,  mid 19th century,
Lot 103
A John Dunn brass graphometer, Scottish, mid 19th century,
Sold for £937 (US$ 1,467) inc. premium

Lot Details
A John Dunn brass graphometer, Scottish, mid 19th century,
signed J Dunn Edinburgh Invt., the rectangular bras base mounted with magnetic compass and alidade with folding sights and bubble level, engraved with a half circle of degrees, in fitted mahogany case, the instrument 6in (15cm) wide

Footnotes

  • A similar instrument is housed in the Nationa Museum of Scotland, Edinburgh. See Brass & Glass, T.N.Clarke, A.D.Morrison-Low, A.D.C.Simpson, National Museums of Scotland 1989 page 93, reference no.8.
Auction information

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