general/magnifiers
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Burning glass (1)
Linen tester (1)
Linen tester (1)
Linen tester (1)
Burning glass (1)
Dome magnifier (1)
Coddington magnifier (1)
Burning glass (1)
Magnifying glass (1)
Reading stone (1)
Graphoscope (1)
Linen tester (1)
Graphoscope (1)
Burning glass (1)
Linen tester (1)
Burning glass (1)
Graphoscope (1)
Video magnifier (1)
Burning glass
Convex lens for fire making
Linen tester
Magnifying device
Linen tester
Magnifying device
Linen tester
Magnifying device
Burning glass
Convex lens for fire making
Burning glass
Convex lens for fire making
Magnifying glass
Convex lens used to magnify images
Reading stone
Optical device
Graphoscope
19th-century magnifying device
Linen tester
Magnifying device
Graphoscope
19th-century magnifying device
Burning glass
Convex lens for fire making
Linen tester
Magnifying device
Burning glass
Convex lens for fire making
Graphoscope
19th-century magnifying device
Video magnifier
Electronic device used for optical magnification