www.antik.it/Old-medical-instruments/281-Tonometer-Jacobsen/
172201416491734Code 281 Tonometer JacobsenSchiøtz tonometer, in its original wooden box with purple satin and velvet interior, made of metal and complete with accessories; in the lid there is also the scale on graph paper to process the results of the measurement. Both the instrument and the box are signed Schiötz's Tonometer, N. Jacobsen, Kristiania; Norwegian manufacture of the early 1900s. Kristiania was the name of Oslo from 1878 to 1924. Box cm 16.5 x8 - inches 6.49x3.14.
It's an instrument used to measure the intraocular pressure by measuring the depth produced by a load of a known weight on the cornea's surface. It was invented by the Norwegian ophthalmologist Hjalmar August Schiøtz, who presented it to the Norwegian Medical Society on the 10th of May 1905.
This instruments consists of a curved base (cool, dry and sterilized before use) placed on the cornea of a supine patient. A weighted plunger attached to the base sinks into the cornea. Then you can read how much the plunger sinks into the cornea and obtain, using a scale, the measure of the intraocular pressure.
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
Old medical instruments
Code 281 Tonometer Jacobsen
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
