What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): One major variety of the 1849 Liberty Head Gold Dollar features a reverse with a closed wreath.
The Open Wreath variety features a reverse with more spacing between ends of the wreath and the numeral "1". The Closed Wreath features less spacing as the ends of the wreath are closer to the number "1". The difference between the Open Wreath vs Closed Wreath is depicted below in the example comparison image:
Coin Value Chart: Typical Coin Prices, Values and Worth in USD based on Grade/Condition