Unknown, 1740 c.
National Maritime Museum, Greenwich (London), England
NAV1499

Unknown, 1740 c.
National Maritime Museum, Greenwich (London), England
NAV1497

Unknown, 1740 c.
National Maritime Museum, Greenwich (London), England
NAV1558

Sterrop, George, 1740 c.
National Maritime Museum, Greenwich (London), England
NAV1514

Hamel, 1740 c.
National Maritime Museum, Greenwich (London), England
NAV1500

Unknown, 1740 c.
National Maritime Museum, Greenwich (London), England
NAV1498

Unknown, 1740 c.
Coll. Willach, Taegerwilen, Switzerland
RW 076 [69] [2006 [7] [2023]

Loft, Mathew, 1740 c.
Coll. Willach, Taegerwilen, Switzerland
RW 107 [52] [2006 28] [2023]

Unknown, 1740 c.
Optisches Museum, Jena, Germany

Cuff, John, 1740 c.
Scotney Castle, Kent, United Kingdom
Nat Trust Inv No 791633

Unknown, 1740 c.
Optisches Museum, Jena, Germany

Unknown, 1740 c.
Optisches Museum, Jena, Germany

Dumont, Martin and Dheulland, 1741
Le Monnier, P. C., Histoire celeste ou recueil de toutes les observations astronomiques faites par ordre du Roy, Paris, France

Scarlett, Edward, 1741 c.
Coll. Willach, Taegerwilen, Switzerland
RW 165 [51] [2005 01] [2023]

Day, John, 1743 c.20
Coll. Willach, Taegerwilen, Switzerland
RW ??? [1781] [2013 19] [2023]

Le Pere, George, 1744
Coll. Willach, Taegerwilen, Switzerland
RW 079 [14] [2006] [2023]

Mann & Ayscough, 1744
Coll. Willach, Taegerwilen, Switzerland
RW 147 [17147] [2006 3] [2023]

le Père, George, 1744
Adler Planetarium and Astronomy Museum, Chicago, USA
M-442

Baillou, Francois, 1745
Coll. Willach, Taegerwilen, Switzerland
RW 059 [42] [2005 25] [2023]

Short, James, 1745 c.
Optisches Museum, Jena, Germany

Short, James, 1748 c.
National Maritime Museum, Greenwich (London), England
AST0939

Adams, George, 1748 c.+7
Adler Planetarium and Astronomy Museum, Chicago, USA
A-352

[unknown maker], 1750
Scheepvaartmuseum, Amsterdam, The Netherlands
S.1690

[unknown maker], 1750
National Museum of Ireland, Dublin, Ireland
NMIDM:1994.17

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1495

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1524

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1509

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1663

Unknown, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1513

Jones, 1750 c.
National Maritime Museum, Greenwich (London), England
NAV1541

Semitecolo, 1750 c.
Coll. Willach, Taegerwilen, Switzerland
RW 119 [21] [2006 68] [2023]

Unknown, 1750 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-433

Unknown, 1750 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-432

Unknown, 1750 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-433

Semitecolo, Leonardo, 1750 c.
Mathematisch-Physikalischer Salon / Staatliche Kunstsammlungen Dresden, Dresden, Germany
CIF 48

Ayscough, James, 1750 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 49

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

Burlini, Biasio, 1750 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 68

Beltrami, Pietro, 1750 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 71

Dolci [attributed], 1750 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 80

Unknown, 1750 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 108

Unknown, 1750 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 109

Mann and Ayscough, 1750 c.
Snowshill Manor and Garden, Snowshill, England
CPW Item number 83 (Admiral)

Mann, I., 1750 c.
Snowshill Manor and Garden, Snowshill, England
CPW Item number 84 (Admiral)

[unknown maker], 1750 c.
Stewart Museum, Montreal, Canada
1993.26abc

Wale, Samuel & Charles Grignion, 1750 c.
Wellcome Images, London, United Kingdom
46334i

Hogarth, William, 1750 c.
Wellcome Images, London, United Kingdom
46336i

Dollond, 1750 c.
Scheepvaartmuseum, Amsterdam, The Netherlands
S.2964(01)

[unknown maker], 1750 c.
National Museum of Ireland, Dublin, Ireland
NMIDM:1994.18

Dollond & Son, 1750 c.
Optisches Museum, Jena, Germany

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