Propeller Pitchometer, J Nicolson Edinburgh.

Propeller Pitchometer, J Nicolson Edinburgh.

Stock Number: 00 250728 A S



Dimension case 47,5 x 6 x 4 cm.


C 1900

Country of manufacture

UK and Ireland

Categories: Maritime, Other Maritime Antiques


Propeller Pitchometer Patent No 11210 J Nicolson Edinburgh, Optician Edinburgh in original case.

Ships pitch as well as roll, but this J. Nicolson optician propellor ‘Pitchometer’ is instead for determining the pitch of a boat’s propeller – how aggressively the lead edge of the prop blades grab at the water. The heavily built brass gauge has a small spirit level behind the tightening wheel, and adjusting arms to conform to the complex geometry of the propeller being measured. Unfortunately, the user manual is missing.  Scotland C 1900 and the leather hinged is broken. Dimension case 47,5 x 6 x 4 cm.

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NL 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.