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