The marking "m925" on a ring indicates that the metal is sterling silver, which is composed of 92.5% silver and 7.5% other metals, usually copper. The "m" could refer to the manufacturer or a specific design element, but it is less common in standard silver markings. Sterling silver is known for its durability and is often used in jewelry. Always ensure to verify the authenticity of the metal with a professional if in doubt.
Black
The harrington and richardson mod 925 was made by H&R between 1946-1947.
925 on a ring mean
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