The 1846 half dollar came in two types – medium date and tall date. This medium date proof coin is extremely rare indeed, with an estimated 10-12 surviving.
The obverse shows the Seated Liberty while the reverse features the heraldic eagle. The coin does not have a motto.
In 1846 in the US, the Mexican-American war started and the Liberty Bell cracked upon its ringing on George Washington’s birthday. This coin comes from a time in the US rich in history.