What is a 200D Sacajawea with flying eagle and a with a number by the eagles' tail?

A 200D Sacajawea coin refers to a specific version of the Sacajawea dollar, which features an image of Sacajawea on one side and a flying eagle on the reverse. The "D" indicates that it was minted in Denver. The presence of a number near the eagle's tail could refer to the designer's initials or a mint mark, which may help in identifying the coin's specific variant or year of production. Collectors often seek such details to determine rarity and value.