The provided context is insufficient for a comprehensive analysis, as one source is irrelevant and the other does not contain accessible text. Therefore, the following assessment is based on established numismatic and metallurgical principles.
The value of a 1963 Washington quarter is determined by two primary factors: its intrinsic metallic worth and its numismatic, or collector, value. The fundamental value of any 1963 quarter is derived from its composition. Quarters minted by the United States in 1964 and earlier consist of 90% silver and 10% copper. This gives the coin a "melt value" based directly on the current market price of silver. As the spot price of silver fluctuates, so does this base value. A standard 90% silver quarter contains approximately 0.18084 troy ounces of pure silver, which serves as the floor for its valuation.
Beyond its silver content, a 1963 quarter can command a numismatic premium. This additional value is contingent upon the coin's condition, or grade, and its mint mark. Quarters were produced at the Philadelphia Mint (no mint mark) and the Denver Mint (a "D" mint mark) in 1963. In circulated conditions, where the coin shows signs of wear from public use, its value typically remains close to its silver melt price. However, for specimens in uncirculated or "Mint State" condition, the value increases. The finer the state of preservation, with minimal to no scratches or blemishes, the higher the premium a collector is willing to pay.
Additionally, the United States Mint produced special "proof" coins for collectors in 1963 at the San Francisco Mint. These coins, bearing an "S" mint mark, were struck with specially prepared dies to create a sharp, detailed design with a mirror-like finish. Due to their limited mintage and high quality, 1963 proof quarters carry a significantly higher value than their Philadelphia or Denver counterparts intended for circulation. Therefore, to ascertain the precise worth of a specific 1963 quarter, a detailed evaluation of its physical condition and mint of origin is essential.
