The coin in question is a 20¢ piece from the Philippines Under U.S. Sovereignty, minted in the year 1904. This specific coin is of significant numismatic interest, as it represents a unique period in both Philippine and American history. Crafted from silver, this coin is noted for its Proof production type, indicating that it was made with high-quality standards, resulting in a striking finish and intricate details. However, it's important to note that this particular coin lacks specified measurements, such as weight, diameter, height, and width, which can complicate traditional means of valuation. The absence of a mint mark suggests that this coin was produced without a designated mint distinguishing it from others, which was common in some years during this era. Despite its mintage being listed as zero, it indicates that the coin's actual production numbers might be extremely low or that collectible examples remain scarce. As a piece of currency from the United States of America, it symbolizes both the integration of the Philippines into U.S. sovereignty and a moment in time where currency began to reflect the changing political landscape of the region. Collectors may be particularly drawn to this coin due to its historical significance, the artistry of its design, and the rarity associated with Proof versions from this series. The typical valuation of such coins can vary widely based on condition and market demand, but its historical context surely adds to its appeal in the numismatic world.