Beautiful surfaces are exceptionally smooth for this challenging San Francisco Mint issue. The strike is sharp to full throughout. Both sides offer bountiful, softly frosted mint luster and gorgeous rose-gold patina. This lovely eagle is sure to find its way into an advanced Indian eagle collection. No more than 600 Uncirculated 1910-S eagles are believed extant (per Jeff Ambio, A Handbook of 20th Century United States Gold Coins: 1907-1933, by David W. Akers, 2008 revision), and the vast majority are confined to the MS-60 to MS-63 grade range. With very few Gems in MS-65 and MS-66 known, this exquisite MS-64 -- very scarce in its own right -- represents an important find for discerning bidders.