22.0 mm in diameter. Silver. Diakov Catalog #653.3. Obverse shows Alexander's monogram and the Russian Imperial crown. Reverse shows Imperial crown and words "Crowned in Moscow, 1856".
In outstanding condition. Extremely sharp definition to the artwork and lettering. There are a few spots of darker tarnish as well as a very few light scratches (almost all of the latter visible only with a lens). Whoever first owned this did not carry it around with his loose change as a good luck "pocket piece".