Description
A small magnifier on a tripod stand, executed in brass. The lens is working fine and can be set by a screwing mechanism.
The case is engraved ‘J.H.W. 1875’, which refers to Jan Hendrik Wilterdink (1856 – 1931), a mathematician and physicist in Leiden. From 1878 and onwards he was associated as an astronomer and observatory in that city. Wilderdink is known for his observations during solar eclipses in various regions on earth.
This lens probably served as a graduation present to Wilterdink in his earlier years.
Case dimensions : Heigth: 4,5 cm, diameter 5,2 cm.
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Dealer information
Van Leest Antiques
Van Leest Antiques
Van Leest Antiques, based in Utrecht in the Netherlands, specialises in antique scientific and medical instruments. Their collection covers mainly scientific and medical antique instruments: barometers, globes and planataria, nautical instruments, anatomical models, and pharmacy items. Toon Van Leest travels regularly in Europe and visits trade fairs, auctions, and antique dealers to collect stock and to find pieces to fulfil his clients' unusual requests.
As well as being an avid antique collector and dealer, Toon Van Leest is also a dentist. He believes that antiques are a stable investment, not reliant on trends or fashion, and have truly lasting value. Above all, he says, antiques are timeless and never lose their beauty.