Simple magnifiers Gray Microscope No. 138; c1695 Microscope No. 122, c1690 Microscope No. 139; c1720 Microscope No. 144; c1750 Microscope No. 111; c1710 Wilson Screw-barrel Microscope No. 25; c1720 Microscope No. 82; c1725 Scarlett Microscope No. 103; c1720 Lindsay Microscope No. 12; c1735 Microscope No. 109; c1745 Microscope No. 85; c1745 Cuff Microscope No. 330; 1753 Microscope No. 268; c1755 W & S Jones Microscope No. 241; c1760 Dollond Microscope No. 95; c1760 Dollond Microscope No. 13; c1764 Clark Microscope No. 49; c1770 Microscope No. 247; c1775 W&S Jones Microscope No. 27; c1775 Microscope No. 44; c1775 Microscope No. 242; c1780 Withering Microscope No. 245, c1800 Microscope No. 249, c1800 Beck Microscope 281, 1870-1875 Bryson Microscope No. 254, 1845-1855 Chavel Microscope 344, 1885 Zentmayer Microscope 278, 1885
