www.antik.it/Antique-barometers/8481-Aneroid-Barometer/
Code 8481
EUR 800.00
In stock
1776870049Code 8481 Aneroid BarometerThe "System Paulin" precision aneroid barometer is a scientific instrument developed between 1915 and 1930 by Swedish engineer Joshua Gabriel Paulin, designed not only to measure atmospheric pressure but also to determine altitude with great accuracy.
Signed, Made in Sweden by System Paulin Aktiebolag, Stockholm.
Good condition, fully functional, and housed in its original leather case.
Dimensions: 14.3 x 8.8 cm – 5.7 x 3.4 in.
Unlike traditional aneroid barometers, which rely on the deformation of a vacuum-sealed metal capsule directly connected to a hand, the Paulin system uses a more sophisticated principle: it employs a double aneroid capsule and an adjustable mechanism that operates according to the so-called "zero method."
In practice, instead of directly reading the movement of the hand, the operator adjusts a knob or screw until the indicator returns to an equilibrium position, and the pressure value is read from the position of the adjustment itself; this approach reduces errors, improving overall accuracy.
These instruments were used primarily in technical and scientific fields, such as surveying, geodesy, geology, mining, and early aeronautical applications, because they offered a good compromise between portability and precision.
They were produced primarily in Sweden and the United States and are often recognized by their robust construction, a metal case sometimes accompanied by a leather cover, a dial with a main scale and adjustment indicators, and the prominent presence of a calibration knob. Today they are considered collector's instruments, relatively rare, appreciated as examples of precision mechanical engineering and less widespread at the time precisely because they were more complex to use than simpler barometers.
FAQ
Do you provide an authenticity certificate/expertise?
Of course! The legislative decree n. 42/2004 stipulates that who sells works of art or historical and archaeological items has the obligation to deliver to the purchaser the documents attesting to the authenticity of the object, or at least to submit the documents relating to the probable attribution and origin. Antik Arte & Scienza provides an expertise (as warranty) that contains a description, period and assignment or the author, if known, of the item.
How can I pay?
Secure payments by PayPal, credit card or bank transfer.
What are the shipping terms and the delivery schedule?
Shipping by DHL or UPS is free (but if we are shipping to a country non-EU remember that any taxes and customs duties are on your expense), and items will be sent just after receiving of payment.
Italy: delivering on the average in 24 h.
Europe: delivering on the average in 2/3 weekdays.
Other countries: delivering on the average in 5 weekdays; custom duties charged to the buyer.
Is shipping insured?
Of course! Free insurance by Lloyd's London that covers almost all destinations.
If I change my mind, can I return the item?
Of course! (see our general terms for more information).
e-Shop
Antique barometers
Code 8481 Aneroid Barometer
Antik Arte & Scienza sas di Daniela Giorgi - via S. Giovanni sul Muro 10 20121 Milan (MI) Italy - +39 0286461448 - info@antik.it - www.antik.it - Monday-Saturday: 10am-7pm
