What is the value of an 1834 half dollar with a w engraved on the front and back and the words Fifty Cents To A Dollar engraved on the edge?

First, there shouldn't be a "w" on the coin, if there is it isn't part of the official design.

Depending greatly on it's condition it would be worth anywhere between $60 and $180

1834 dollars in Uncirculated condition are worth $1,200-2,500