There is no listing in the Red Book for them as single coins, but there are listings in "Coin Values" magazine.
To be honest, it would be hard to tell between a regular 1965 coin and an SMS coin once its out of the mint package. The 1966 and 1967 coins ranged from better to much better.
Retired dealer and avid collector of U.S. type coins, 19th century presidential campaign medalets and selected medals. In recent years I have been working on a set of British coins - at least one coin from each king or queen who issued pieces that are collectible. I am also collecting at least one coin for each Roman emperor from Julius Caesar to ... ?
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To be honest, it would be hard to tell between a regular 1965 coin and an SMS coin once its out of the mint package. The 1966 and 1967 coins ranged from better to much better.