Troughton Compass
This beautiful little sighting compass is 200 years old and was made by Edward Troughton before his amalgamation with William Simm in 1826.
One side of the sighting vane has a mirror.
There is a needle lock that can be operated when the compass body is removed from the wood housing.
The needle is of the bar type with a jewel on the pivot.
Very well constructed.
Overall it measures 85 x 85 x 30 mm.