Molteni Sextant

<< >>
This sextant belonged to Weston College in Weston, Massachusetts, and probably dates from the third quarter of the 19th century. It has a brass frame. The inscription on the arc reads "J. & A. Molteni à Paris." The silvered scale is graduated every 10 minutes from -5° to +168° and read by vernier with tangent screw and magnifier to 10 seconds of arc. The Molteni family was in business in Paris from 1782 to about 1900, making a wide variety of mathematical instruments.
Currently not on view
date made
19th century
J. & A. Molteni
place made
France: Île-de-France, Paris
Physical Description
mahogany (overall material)
brass (overall material)
silver (overall material)
overall: 9 3/4 in x 11 in x 4 in; 24.765 cm x 27.94 cm x 10.16 cm
overall in case: 4 3/4 in x 10 3/8 in x 10 3/8 in; 12.065 cm x 26.3525 cm x 26.3525 cm
ID Number
catalog number
accession number
Credit Line
Weston College
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History


Add a comment about this object