Dioptrice : pre-1775 refracting telescopes

pre-1775 refracting telescopes

e.g. “dollond”

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Martin, Benjamin, 1760 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
Middelburg 18

Dollond, 1775 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 157

van Deijl, Jan and Harmanus, 1768
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 164

Spindler & Hoyer, 1930 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 335

Ayscough, James
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 180

Dollond, 1850 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 187

Unknown, 1900 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 190

Adams, Dudley, 1803
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 211

Scarlett, Edward
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 367

Patroni, Pietro
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 199

Dioptrice is made possible by the generous support of the National Science Foundation, the National Endowment for the Humanities, the Program in the History and Philosophy of Science at the University of Notre Dame, and the Adler Planetarium & Astronomy Museum.

+ Include in full text search:	Maker Manufacturing Location Description Signature Accession Public notes
+ Look for Blank Fields:	Maker Signature Year Manufacturing Location Inscriptions Provenance Drawtube Notes Public Notes Private Notes Objective Focal Length Eyepiece Focal Length Objective Notes Eyepiece Notes Magnification
+ Look for Non-Blank Fields:	Maker Signature Year Manufacturing Location Inscriptions Provenance Drawtube Notes Public Notes Private Notes Objective Focal Length Eyepiece Focal Length Objective Notes Eyepiece Notes Magnification
+ Year range:	1600 - 2014
+ Focal length range (mm):	0 - 2000
+ Free aperture range (mm):	0 - 2000
+ Full aperture range (mm):	1600 - 2014
+ Open length range (mm):	0 - 2000
+ Closed length range (mm):	0 - 2000
+ Categories:	Art Collection Book or Manuscript Instrument Collection
+ Materials:	organics bamboo black ivory bone boxwood ebony fish skin horn ivory lacquer leather lignum vitae mahogany paper parchment pasteboard rayskin shagreen sharkskin tortoiseshell vellum wood metal brass copper gilt gold leaf gold tooling iron platinum tooling silver silver tooling unknown glass glass rock crystal speculum other marble paint stone
+ Collection:
+ Objective type:	(all refractors) (all reflectors) (clear selection) N/A cassegrain doublet (crown forward) doublet (flint forward) doublet (unknown) gregorian herschelian newtonian singlet triplet unconfirmed unknown reflector

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Louwman Collection of Historic Telescopes