This is a beautiful early 1800s Brass Compass in original Oak box hinges wood case.  It is marked in script R.M. Brandeis, in Prag (Prague).  Very seldom found and truly a collectible treasure.  Notice the ruby jewel in center of needle for precision and box joints.   It also has a needle lock to prevent damage when traveling.   This machine is in perfect operation and display condition.  The Brandeis name has an amazing history dating to 17th century in Prague.  The compass measures 4.5” square and wood case measures 5.25” square.  Weight is 3 lbs.  In our many years of collecting scientific items including compasses, this is the holy grail of compasses.   It will highlight any collection of antique compasses.