The provided context from search results is insufficient to formulate a comprehensive answer. Therefore, the following information is based on established numismatic valuations for the coin in question.
The monetary value of the John Adams dollar coin, issued in 2007 as the second installment of the Presidential $1 Coin Program, is contingent upon its condition, mint mark, and the presence of any errors. For the vast majority of these coins encountered in general circulation, their value is equivalent to their face value of one dollar. These coins were produced in large quantities by the Philadelphia (P mint mark) and Denver (D mint mark) mints for transactional use, and thus they hold no significant numismatic premium in circulated condition.
However, for coins that were never circulated and remain in pristine, or "uncirculated," condition, the value increases. A standard uncirculated John Adams dollar from either the Philadelphia or Denver mint is typically valued in the range of $2 to $4. The precise value within this range is determined by the coin's grade, with higher grades (such as MS-65 and above on the Sheldon scale) commanding higher prices from collectors. Coins with a special satin finish, which were included in annual U.S. Mint uncirculated sets, also carry a similar modest premium.
The United States Mint also produced proof versions of the coin for inclusion in collector sets. These coins, struck at the San Francisco Mint and bearing an "S" mint mark, feature a sharp strike and mirror-like finish. A typical John Adams proof dollar coin is generally valued between $4 and $8. The most significant increase in value pertains to error varieties. The Presidential dollar series is known for coins that were mistakenly released without the required edge lettering, which includes the year, mint mark, and the motto "E PLURIBUS UNUM." A John Adams dollar with this missing edge lettering error is a notable collectible and can be worth a considerable amount more, often ranging from $50 to several hundred dollars, depending on its certified grade and condition.
