Spindle whorl, in stone. Labelled as 'Stone ring found at Raby in the parish of Waksala, three miles NW from Upsala. Presented [to Alexander Thomson] by Mr Nissen per Rev Professor Lumsden, Oct 1861.'
Glass tube with brass ends; with ball terminals; inside tube is spiral of small metal discs each seperated by gap of less than 1 mm; when tube is placed across an electrostatic generator, a spiral discharge is seen around inside of tube caused by…