NK1157 : Rattray Head Lighthouse The Admiralty 'North Sea (West) Pilot' NP54' describes the lighthouse thus: Rattray Head Light (white tower, lower part granite, upper part brick, 34m in height) (57:37N, 1:49W) stands on a rock called The Ron.
An Air Image photo (loc cit) shows another feature not obvious in any of the four current photographs on GEOGRAPH [NK1157]; the brick tower is not central on the granite plinth, but offset to the westward (land) side of it.