Clinometer, also known as dip-sector
probably made in London

© National Museums Scotland

000-180-001-169-C

Proportional compasses
probably made in London

© National Museums Scotland

000-100-102-665-C

Proportional compasses
probably made in London

© National Museums Scotland

000-190-001-016-C

Telescope accessories
probably made in London

© National Museums Scotland

000-100-104-192-C