An Crystal model with three colored thread axis, white – yellow – red. A mathematical pane has the property that the axis are 90 degrees to one other, the axis, red, yellow and blue line, are in 90 degrees to one other. The old glass have a small crack of 1,6 cm by the red thread axe, . The tape have a test of time. Further in good condition. Measurements 11,5 x 9 x 14,5 cm.
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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.