This vault for the Moodie family or Breckness or Melsetter lies at the southern edge of Warbeth Cemetery, Stromness, Orkney. The coat of arms has chevron with a 'castle/beacon' to the top left and two pheons points upwards and a hunting horn in chief. The date '1734' has the initials 'IM' above it to the left and '?M' to the right. A detailed model of the coat of arms can be found here:
https://sketchfab.com/models/a024c9908b394a24b893638aaff90bb9