Andrew Nethercott Antiques has dated this piece to the 1800s.
Similar devices were made by John Dollond of London.
A large lens and smaller sample platform (lens) with finger ring at one end.
Smaller lens with original black frosted glass edge, now partly worn.
The oblong section frame with slide out bed for focusing.
Large 30mm diameter front lens, smaller lens 16mm diameter.
Magnification approximately 2.5x.
2,5/8" or 67mm long extended.
All in excellent condition and good working order.
Andrew Nethercott Antiques has dated this piece to the 1800s.
Works of art, collectables, scientific and decorative antiques from the 17th - 20th century
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