The Capped Bust Dimes struck with a wide border from 1809 to 1828 have a composition of 89.24% silver and 10.76% copper with a weight of 2.70 grams. These coins have an approximate diameter of 18.8 mm, although slight variation is possible. All coins have a reeded edge.
The dimes with the modified design struck from 1828 to 1837 used a close collar, resulting in more uniform size. During this period, the diameter was reduced slightly to 18.5 mm while the other specifications remained the same. In the final year of the series, the composition was changed to 90% silver and 10% copper with a standard weight of 2.67 grams.
