The 1991 Uncirculated Silver Eagle is considered to be one of the scarcer issues in the Uncirculated Silver Eagle series, as it has a mintage of about 7.2 million coins struck. The mintage is not necessarily considered to be low, as there are about 15 other dates with lower mintages. However, there are numerous other dates with mintages that have over 30 million coins struck.
Most examples of the 1991 Uncirculated Silver Eagle come well struck and range from about MS67- to about MS69. However, many of them have small nicks and scratches that prevent them from grading MS69 or higher. Therefore, nice MS69 examples with minimal flaws can be very hard to find. In perfect MS70 condition, they are very rare.