Binocular stereoscopic camera no. 12
circa 1856
Dumpy level
circa 1850
Stereoscope, made by J. B. Dancer (brasswork) and Louden (optics) to Brewster's design
circa 1853; 1853
Box Sextant
1855-1865
Experimental daguerreotype
1842
Compound Microscope
1860-1865
Dancer Ruler
1860-1870
Four microphotographs by JB Dancer
1860; 1860
Binocular Compound Microscope
1861
Microscope slide cabinet
circa 1860
Half-plate camera
circa 1860
Gyroscope, made by J. B. Dancer
1855-1865
Refracting Telescope
1855-1865
Compound Microscope
1860
Ruler
1860-1880
Compound microscope in mahogany case
1839-1845
Dumpy Level
1870-1880
Refracting Telescope
1855-1865
Telescope Accessories
1855-1865
Aneroid barometer
1860
Holosterique Aneroid Barometer
1860-1870
Compound Microscope with display case and storage case
1855
Rule used by James Joule
circa 1858
Surveying Compass
1845-1855
Forty-four microphotographs by J. B. Dancer
1860
Microscope Case
1855-1865
Gould microscope with boxfoot
1830-1850
Cuff type microscope
1870-1890
Framed daguerreotype of a painting of a battle
circa 1842
Microphotograph "Photograph from life of J. B. Dancer"
1855-1857
Microprojector, made by J. B. Dancer.
1850-1860
Dancer Protractor
1860
Rolling parallel rule, made by John Benjamin Dancer
circa 1860
Portable chemical balance
circa 1855
Compound Microscope
1850-1855
Binocular Microscope by J.B. Dancer
1861
Microphotograph, made by Dancer
1860
Six microphotographs by J. B. Dancer
1860
Projector Lens
1860-1870
Binocular microscope by Lancaster and Son of Birmingham
1851-1875
Portable Balance
1850-1860
Dancer Hydrometer
1855-1865
Student microscope in case
1875-1900
Microphotograph, made by Dancer
1860
Plate holder and Shutter
1856
microphotograph
1860
Portrait Lens
1860-1870
Micro-Lantern Attachment
1855-1860
Portable microscope
1860-1870
Portable microscope
1860-1865