Astronomical quadrant with stand, 1685-1724

Astronomy

1685-1724

Folding rule

Weighing & Measuring

1680-1699

Microscope of the Leeuwenhoek type

Microscopes

Pocket sun dial with folding gnomon and case

Time Measurement

1678-1724

Horizontal Butterfield-type sundial, in shagreen covered case

Time Measurement

1678-1724

Semicircular protractor

Mathematics

Brass sector, by Butterfield

Mathematics

Universal equinoctial ring sundial, astronomical ring dial

Time Measurement

1628-1724

Gunner's level, brass with iron bob, signed "Butte

Mathematics

Silver sector, signed "Clerget A Paris au Butterfi

Mathematics

1740-1760