Unknown, 1750 c.
Optisches Museum, Jena, Germany

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1527

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1552

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1557

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1577

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1576

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1597

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1599

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1617

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1655

Semitecolo, Leonardo, 1750 c. +50
Narodni Technicke Muzeum, Prague, Czech Republic
5.732

Semitecolo, Leonardo, 1750 c. +50
Narodni Technicke Muzeum, Prague, Czech Republic
14.525

Semitecolo, Leonardo, 1750 c. +50
Narodni Technicke Muzeum, Prague, Czech Republic
24.864

Olivo, 1750 c. +50
Narodni Technicke Muzeum, Prague, Czech Republic
49.662

[unknown maker], 1750 c. +50
Optisches Museum, Jena, Germany

Ribright, Thomas, 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 219

Unknown, 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 220

Ribright, Thomas, 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 222

Dollond, 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 53

Campi, Giovanni Battista, 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 75

Campi, Giovanni Battista, 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 76

Campi, Giovanni Battista [attributed], 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 77

Unknown, 1750 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 78

Unknown, 1750 c.+50
Adler Planetarium and Astronomy Museum, Chicago, USA
M-458

Deregni, Angelo, 1750 c.+50
Optisches Museum, Jena, Germany

Unknown, 1750 c.10
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 44

Semitecolo, Leonardo, 1750 c.50
Adler Planetarium and Astronomy Museum, Chicago, USA
M-447

Unknown, 1750 c.50
Adler Planetarium and Astronomy Museum, Chicago, USA
M-453

Semitecolo, Leonardo, 1750 c.50
Adler Planetarium and Astronomy Museum, Chicago, USA
W-180

Unknown, 1750 c.50
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 93

Deregni, Angelo, 1750 c.?
Adler Planetarium and Astronomy Museum, Chicago, USA
M-449

[unknown maker], 1751
Condamine, Charles-Marie de La. Journal du voyage... a l'Equateur, servant d'introduction historique a la mesure des trois premiers degres du méridien..., Paris, France

Fourcy, 1752
Technisches Museum Wien, Vienna, Austria
10706

Short, James, 1752 c.+4
National Maritime Museum, Greenwich (London), England
AST0942

Baillou, Francois, 1753
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 72

Ayscough, James, 1754
Coll. Willach, Taegerwilen, Switzerland
RW 036 [40] [2023 04] [2023]

Pieters van der Bildt, Jan, 1754
Technisches Museum Wien, Vienna, Austria
10711

Dollond & Son, 1754 c.
Coll. Willach, Taegerwilen, Switzerland
RW ??? 6

Ayscough, 1755 c.
Coll. Willach, Taegerwilen, Switzerland
RW 125 [41] [2006 10 2008 27]] [2023]

Stedman, Charles, 1755 c.
Coll. Willach, Taegerwilen, Switzerland
RW 170 [17170] [2013 22] [2023]

Short, James, 1756
Adler Planetarium and Astronomy Museum, Chicago, USA
W-32

Ayscough, 1756 c.
Coll. Willach, Taegerwilen, Switzerland
RW 060? [2] [2006 02] [2023]

Ayscough, 1756 c.
Coll. Willach, Taegerwilen, Switzerland
RW 060 [1] [2006 2] [2023]

Dollond, 1758 c.
Coll. Willach, Taegerwilen, Switzerland
RW 121 [67] [2006 13] [2023]

Dollond & Son, 1758 c.
Coll. Willach, Taegerwilen, Switzerland
RW ??? [9]

Martin, Benjamin, 1759
Martin, Benjamin, Gentleman and Lady's Philosophy, London, United Kingdom

Baillou, Francus du, 1759
Optisches Museum, Jena, Germany
03/0177

Watkins, 1760 c.
National Maritime Museum, Greenwich (London), England
NAV1535

Dollond, 1760 c.
National Maritime Museum, Greenwich (London), England
NAV1656

Watkins, Francis, 1760 c.
National Maritime Museum, Greenwich (London), England
NAV1539