Collectible coins from the Philippines under U.S. sovereignty, particularly those from the year 1920, are of interest to numismatists due to their historical context and design. These coins often reflect the transition of the Philippines from Spanish to American rule and feature various designs that can include indigenous flora and fauna, national symbols, or important figures. The term "Unknown" might refer to coins with uncertain mintage or specific varieties that are not well-documented in existing catalogs. Collectors typically seek these coins for their rarity, historical significance, and aesthetic appeal.

Item Denomination Series Year Mint
1920-- (Unknown) Philippines Under U.S. Sovereignty Other / Varied Philippines Under U.S. Sovereignty 1920 Unknown