Four Pocket Compasses, 19th and 20th centuries, (4)
Three Prismatic Marching Compasses, 20th century, (3)
A Circular Brass Compass Sundial, English, mid 18th century, (3)
A Boxwood Diptych Dial, German, early 19th century, (2)
A 4-Inch Hand-Held Magnifying Glass, English, 19th century, (3)
An 8-Inch Magnifying Lens on Stand, English, mid 19th century,
Two 5-Inch Magnifying Glasses, English, mid 19th century, (2)
Three Hand-Held Magnifying Glasses, 19th century, (3)
A Charles Baker Brass Compound Monocular Microscope, English, mid 19th century,
A Smith & Beck Brass Monocular Compound Microscope, English, mid 19th century,
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