Silver disk pyreheliometer for measuring the power in solar radiation. Instrument purchased from Smithsonian Institution who developed the device. Can be seen in use in the photograph of the total solar eclipse of 1927 taken on top of the Cromwell…
From a collection of items from Coull Castle. Museum's Slip Catalogue: 'medieval relics from Coull Castle. Was found in the South door of domestic range.'
Reflecting telescope with Gregorian optics, possibly made in London, concave secondary mirror, no name on speculum-metal primary mirror. Unusual brass pillar stand possibly made in Edinburgh. Upright image of magnification x8.
Inscription: Old label…
Silver arrow. Prize formerly contended for by a Fraternity of Bowmen in Aberdeen.
Inscription: Engraved with: coat.of.arms of Earls.Marischal and L WK vicit anno 1769