An early English brass folding ruler with three different dimensions, Date 1753. In addition, on the folding action of the year 1753 (same engraving as the scale). This can be either a right-angle corner as “triangle” shapes with the legs of the sector. The following three scales are on the ruler:
Side 1: Total length of 12 english thumbs which is a foot (12 thumsbs is 30,5 cm). There is a heart engraved under the number of 12.
Side 2: 96 units over a length of 12 thumbs so each unit is 1/8 inch
Side 3; 12,5 units on the length of 30,5 cm
Probably used by a carpenter.
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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.