Unusual Antique VTG Pocket Slide Craniometer Phrenology Caliper Arthur Trevelyan
Item History & Price
| Reference Number: Avaluer:4315270 | Period: 1901 to 1950 |
| Type: Medical | Country/Region of Manufacture: United Kingdom |
| Sub-Type: Craniometer | Material: Steel |
IN LINE WITH EBAY GTC POLICIES, THIS ITEM MAY BE ENDED AT ANY TIME.
A medical device for taking measurements of the human skull. Marked Arthur Trevelyan.Made of a non-magnetic alloy and has 2 brass rings which hold it together. Unusually, it folds down to pocket size.It has an imperial inch scale only. It is nicely engineered. All joints are good and the mechanism is in good working order. The scale is clear and readable. It measures from 4 up to ...8 inches (about 10 to 20cm). I have calibrated it against a steel rule and it is accurate to within about 0.5% which is pretty good considering the age. It does not quite fold completely flat.The metal has a condition consistent with long-term use. The parts which are exposed when the instrument is folded are dull and patinated. The internal surfaces are mirror bright. The brass is darkened.The age is not clear. The use of brass and the absence of a metric scale suggests early 20th century or older. I have found references online to an Arthur Trevelyan who was polymath inventor / composer who lived in the early 19th century. He was (along with other members of the Trevelyan family) active in the Phrenological Association. .
When closed the device measure 5.5 x 1.1 x 0.1 inches. (140 x 28 x 3 mm)
Weighs about 52g (2ozs).
Thanks for looking. Please check out my other items. I have other antique scientific and medical items listed including another larger craniometer.. You may also be interested in other items in the CURIOS & ODDITIES section of my shop.
If you purchase multiple items I will pass on any savings in postage.
Local import duties and taxes are the responsibility of the buyer.
If you wish to collect in person, please note I require payment in advance via Paypal. No cash on collection.
A medical device for taking measurements of the human skull. Marked Arthur Trevelyan.Made of a non-magnetic alloy and has 2 brass rings which hold it together. Unusually, it folds down to pocket size.It has an imperial inch scale only. It is nicely engineered. All joints are good and the mechanism is in good working order. The scale is clear and readable. It measures from 4 up to ...8 inches (about 10 to 20cm). I have calibrated it against a steel rule and it is accurate to within about 0.5% which is pretty good considering the age. It does not quite fold completely flat.The metal has a condition consistent with long-term use. The parts which are exposed when the instrument is folded are dull and patinated. The internal surfaces are mirror bright. The brass is darkened.The age is not clear. The use of brass and the absence of a metric scale suggests early 20th century or older. I have found references online to an Arthur Trevelyan who was polymath inventor / composer who lived in the early 19th century. He was (along with other members of the Trevelyan family) active in the Phrenological Association. .
When closed the device measure 5.5 x 1.1 x 0.1 inches. (140 x 28 x 3 mm)
Weighs about 52g (2ozs).
Thanks for looking. Please check out my other items. I have other antique scientific and medical items listed including another larger craniometer.. You may also be interested in other items in the CURIOS & ODDITIES section of my shop.
If you purchase multiple items I will pass on any savings in postage.
Local import duties and taxes are the responsibility of the buyer.
If you wish to collect in person, please note I require payment in advance via Paypal. No cash on collection.
