Globetrotter Series ready reckoner calculating rule for mileage between European cities and currency conversion 1965-1972
Gregorian reflecting telescope of 6 inch aperture and 30 inch focal length by Thomas Morton 1817-1862
Set of incomplete set of 5 brass nested cup weights from the Castlereagh Collection for Nice (France). Nested cup weights, brass 1800-1818
"Diagraphe", perspectograph for drawing from nature in perspective or orthogonal projection 1880-1910