Unknown, 1775 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 101

Unknown, 1775 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 102

Unknown, 1775 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 103

Unknown, 1775 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 104

Unknown, 1775 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 105

Unknown, 1775 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 106

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

Unknown, 1775 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 52

Beleti, Paul, 1681
Coll. Willach, Taegerwilen, Switzerland
RW ??? [3] [2008 01] [2023]

Unknown, 1650 c.
Coll. Willach, Taegerwilen, Switzerland
RW 102 [16102] [2013 06] [2023]]

Loft, Matt, 1725 c.+25
Coll. Willach, Taegerwilen, Switzerland
RW 107 [48] [2005 31] [2023]

Unknown, 1770 c.
Coll. Willach, Taegerwilen, Switzerland
RW 117 [33] [??] [2023]

Semitecolo, 1775 c.
Coll. Willach, Taegerwilen, Switzerland
RW ??? [22] [2006 67] [2023]

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

Marshall, John, 1700 c.+25
Coll. Willach, Taegerwilen, Switzerland
RW 145? [49] [2008 08] [2023]

Dollond & Son
Coll. Willach, Taegerwilen, Switzerland
RW 178 [28 06(11)] [2006 11] [2023]

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

Unknown, 1680 c.
Coll. Willach, Taegerwilen, Switzerland
RW 022 [35] [2006 59 2013 01] [2023]

Unknown, 1680 c.10
Coll. Willach, Taegerwilen, Switzerland
RW 042 [2642] [2013 14] [2023]

Dolci, 1780 c.
Coll. Willach, Taegerwilen, Switzerland
RW 098 [5] [2006 69] [2023]

Dollond
Coll. Willach, Taegerwilen, Switzerland
RW 050? [10] [2006 17] [2023]

Unknown, 1680 c.
Coll. Willach, Taegerwilen, Switzerland
RW 077 [29] [2006 58] [2023]

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

Linnell, J.
Coll. Willach, Taegerwilen, Switzerland
RW 019 [15] [2006 04] [2023]

Passemant, 1760 c.
Coll. Willach, Taegerwilen, Switzerland
RW 160 [19] [] [2023]

Patroni, Pierre, 1720 c.
Coll. Willach, Taegerwilen, Switzerland
RW 041 [57] [2008 10] [2023]

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

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

Short, James, 1735
Coll. Willach, Taegerwilen, Switzerland
RW 154 [21] [] [2023]

Mesnard
Coll. Willach, Taegerwilen, Switzerland
RW 029 [71] [2006 60] [2023]

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

Dodasne, Dominique, 1697
Coll. Willach, Taegerwilen, Switzerland
RW 149 [26149] [2013 17] [2023] same as record 254

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

Yarwell, John, 1690 c.10
Coll. Willach, Taegerwilen, Switzerland
RW 144 [26144] [2013 13] [2023]

Dollond / Linnell
Coll. Willach, Taegerwilen, Switzerland
RW 019 [34] [2006 15] [2023]

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

Mesnard
Coll. Willach, Taegerwilen, Switzerland
RW 052? [70] [2006 61] [2023]

Unknown, 1700 c.+25
Coll. Willach, Taegerwilen, Switzerland
RW 163 [64] [2006 6 2005 29] [2023]

Vesdy, 1680 c.+20
Coll. Willach, Taegerwilen, Switzerland
RW 057 [2657] [2013 12] [2023]

Dollond, 1766 c.
Coll. Willach, Taegerwilen, Switzerland
RW 067 [56] [2006 16] [2023]

Yarwell, John, 1690 c.10
Coll. Willach, Taegerwilen, Switzerland
RW 143 [26143] [2013 11] [2023]

Unknown, 1700 c.
Coll. Willach, Taegerwilen, Switzerland
RW 142 [26142] [2013 16] [2023]

Unknown, 1650 c.+25
Coll. Willach, Taegerwilen, Switzerland
RW 132 [26132] [2014] [2023]

Gonichon, 1770 c.+10
Coll. Willach, Taegerwilen, Switzerland
RW 020 [13] [2006 39] [2023]

Marshall, John, 1694
Coll. Willach, Taegerwilen, Switzerland
RW 184 [26184 / 16184] [2006 49] [2023]

Unknown, 1675 c.25
Coll. Willach, Taegerwilen, Switzerland
RW 127 [26127] [] [2023]

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

Unknown, 1675 c.25
Coll. Willach, Taegerwilen, Switzerland
RW 070 [2670] [2013 18] [2023]

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

Campani, Giuseppe, 1665 c.
Coll. Willach, Taegerwilen, Switzerland
RW 051 [2651] [only 1] [2023]

Gilbert, J.
Coll. Willach, Taegerwilen, Switzerland
RW 071 [12] [2006 43a] [2023]

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

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

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

Dollond, Peter, 1761 c.+5
Coll. Willach, Taegerwilen, Switzerland
RW 176 [8] [2006 20] [2023]

Moschino, Giuseppe
Coll. Willach, Taegerwilen, Switzerland
RW 120 [06(38)] [2006 38] [2023]]

Adams, G., 1770 c.
Coll. Willach, Taegerwilen, Switzerland
RW 166 [39] [2008 23] [2023]

Unknown, 1660 c.10
Coll. Willach, Taegerwilen, Switzerland
RW 155 [26155] [2013 04] [2023]

Unknown, 1690 c.+10
Coll. Willach, Taegerwilen, Switzerland
RW 062 [28] [2006 56] [2023]

Louis Mesnard, 1690 c.
Coll. Willach, Taegerwilen, Switzerland
RW 080 [17] [2006 62] [2023]

Unknown
Coll. Willach, Taegerwilen, Switzerland
RW 092 [26] [2006 55] [2023]

Unknown, 1690 c.
Coll. Willach, Taegerwilen, Switzerland
RW ??? [30] [2006 57] [2023]

Short, James, 1734
Coll. Willach, Taegerwilen, Switzerland
RW 061 [73] [] [2023]

Dodasne, 1697 c.
Coll. Willach, Taegerwilen, Switzerland
RW 149 [31] same as record 215?

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

Du Jardin, Pierre, 1620 c.
Coll. Willach, Taegerwilen, Switzerland
RW 099 [1699] [lots] [2023]

Unknown, 1650 c.+10
Coll. Willach, Taegerwilen, Switzerland
RW 150 [16150] [2013 3] [2023]

Pyefinch, Henry, 1777 c.
Coll. Willach, Taegerwilen, Switzerland
RW 156 [58] [2022 22 2006 24] [2023]

Unknown, 1715 c.
Coll. Willach, Taegerwilen, Switzerland
RW 014 [1714 32] [2006 65] [2023]

[Mesnard, G.], 1675 c.
Coll. Willach, Taegerwilen, Switzerland
RW ??? [16] [2006 60] [2023]

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

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

Bourgeois, Jacques, 1680 c.
Coll. Willach, Taegerwilen, Switzerland
RW 022 [2622] [] [2023]

[Le Pere, George]
Coll. Willach, Taegerwilen, Switzerland
RW 133 [26133] [2013 05] [2023]

Wiesel
Coll. Willach, Taegerwilen, Switzerland
RW 185 [26185 / 16185] [] [2023]

Unknown, 1725 at earliest
Coll. Willach, Taegerwilen, Switzerland
RW 048 [1748] [2013 20] [2023]

Anian, 1691
Coll. Willach, Taegerwilen, Switzerland
RW 182 [16182] [2008 02] [2023]]

Dollond, Peter, 1775 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-432

Unknown, 1675 c.+25
Adler Planetarium and Astronomy Museum, Chicago, USA
M-422a

Baillou, Franciscus, 1738
Adler Planetarium and Astronomy Museum, Chicago, USA
M-431

Ramsden, Jesse, 1775 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
DPW-39

Unknown, 1700 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
A-364

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

Unknown, 1660 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-423

Unknown, 1725 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-454

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

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

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

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

Dollond, 1810 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
A-149

Ramsden, Jesse, 1780 c.20
Adler Planetarium and Astronomy Museum, Chicago, USA
DPW-39

Unknown, Italian or possibly French, 1630 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-421

Unknown, French, 1650 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-422

Marshall, John, 1680 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-424

Unknown, 1700 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-425

Patroni, Pietro
Adler Planetarium and Astronomy Museum, Chicago, USA
M-426

Unknown, 1700 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-427

Campani, Giuseppe, 1670 c.
Adler Planetarium and Astronomy Museum, Chicago, USA
M-428

Unknown, 1680 c.+10
Adler Planetarium and Astronomy Museum, Chicago, USA
M-428a