Silva compass on an Ordnance Survey map

Silva compass on an Ordnance Survey map

H305/0086 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 26.4MB

Downloadable file size: 2.2MB

Price image Pricing

Please login to use the price calculator


Caption: Compass. A modern Silva-type compass for use in conjunction with a map for finding directions. It is seen resting on an Ordnance Survey map. The Silva compass consists of a fluid-damped, magnetised needle fixed to a plastic ruler base. The north-seeking pole is indicated, with degrees west, south and east, and the needle is free to rotate on a pivot. The needle becomes aligned to the local component of the Earth's magnetic field, resting north to south. From this true north can then be calculated, and orientated to points on the map.

Release details: Model release not required. Property release not required.

Keywords: compass, device, equipment, instrument, map, ordnance and compass, ordnance survey map, science, scientific, silva compass, silva type

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.