Troughton & Simms, 1850 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 358

Dollond, 1800 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 183

Dollond
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL.4

Unknown, 1675 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 22

Unknown, 1650 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 19

Unknown, 1675 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 91

Unknown, 1625 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 17

Unknown, 1675 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 55

Rossin
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL.18

Passemant, Claude Simeon
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 163

Campani, Giuseppe, 1675 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 60

Unknown, 1700 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 56

Patroni, Pietro, 1735
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 70

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

Unknown
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 256

Unknown, 1650 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 20

Unknown, 1625 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 18

Watkins, Unconfirmed
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL.10

Ramsden, Jesse
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 214

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

Campani, Giuseppe
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL.22

Unknown, 1800 c.+50
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 260

Unknown, 1700 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 169

Unknown, 1700 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 41

Hofmann, J. G., 1860 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 322

Unknown, 1850 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 258

Patroni, Pietro, 1700 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 69

Marshall, John
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL. 8

Marshall, John, 1700 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 38

Campani, Giuseppe, 1689
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 62

Baillou, Francois, 1761
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 73

Beleti, Paul, 1681
Coll. Willach, Taegerwilen, Switzerland
3

Unknown, 1650 c.
Coll. Willach, Taegerwilen, Switzerland
16102

Loft, Matt, 1725 c.+25
Coll. Willach, Taegerwilen, Switzerland
48

Unknown, 1770 c.
Coll. Willach, Taegerwilen, Switzerland
33

Semitecolo, 1775 c.
Coll. Willach, Taegerwilen, Switzerland
22

Ayscough, 1756 c.
Coll. Willach, Taegerwilen, Switzerland
2

Marshall, John, 1700 c.+25
Coll. Willach, Taegerwilen, Switzerland
49

Dollond & Son
Coll. Willach, Taegerwilen, Switzerland
RW 28 06(11)

Day, John, 1743 c.20
Coll. Willach, Taegerwilen, Switzerland
1781

Unknown, 1680 c.
Coll. Willach, Taegerwilen, Switzerland
35

Unknown, 1680 c.10
Coll. Willach, Taegerwilen, Switzerland
2642

Dolci, 1780 c.
Coll. Willach, Taegerwilen, Switzerland
5

Dollond
Coll. Willach, Taegerwilen, Switzerland
10

Unknown, 1680 c.
Coll. Willach, Taegerwilen, Switzerland
29

Ayscough, James, 1754
Coll. Willach, Taegerwilen, Switzerland
40

Linnell, J.
Coll. Willach, Taegerwilen, Switzerland
15

Passemant, 1760 c.
Coll. Willach, Taegerwilen, Switzerland
19

Patroni, Pierre, 1720 c.
Coll. Willach, Taegerwilen, Switzerland
57

Scarlett, Edward, 1741 c.
Coll. Willach, Taegerwilen, Switzerland
51