Eye-piece micrometer inscribed E.6 in wood mount with brass frame divided circle (120 divisions numbered from 0 degree to 60 degrees) and steel screw, 2 threads in position Filar micrometer by William Herschel, 1780-1800 Astronomy 1780-1800
Patent model of improved orrery by John G. Moore of Philadelphia, US Patent 51072 dated 21st November 1865, with original tag. Patent model of orrery planetary mechanism, 1865 Astronomy 1865
Map of Europe marked with the paths of totality for solar eclipses during the 20th century Astronomy 1927
Sample radio receiver for the James Clerk Maxwell sub-millimetre radio telescope, 1986 Astronomy 1986
Patent model in brass of a pantoscope, invented by Charles Emmanuel of Paris, patented in America [Patent No. 45,954 January 17, 1865] and made by T. Auvray, Paris. Patent model in brass of a pantoscope Astronomy 1865