David Akers was correct in his observation that the 1861 is one of the most common of the No Motto Eagle dates, though he rated it more common than the 1855, which is incorrect. Based on population data, the most common dates among the No Motto Eagles are 1847, 1847-O, 1851-O, and then the 1861. In fact, the 1855 is much less common than the 1861.
Grading data shows over two dozen PCGS-certified Mint State examples, the vast majority of which are low-end MS61s. The two choice examples to which Akers referred appear to include an amazing PCGS MS66 (finest known from the Bass Collection) and a lovely PCGS MS64+ (the second finest known).
Harry W. Bass, Jr. Collection - Bowers & Merena 11/2000:679, $50,600
Heritage 8/2013:5878 (as NGC MS63+ 3672419-001), $25,850 (plate-matched) - Numismatic Financial Corporation (as PCGS MS63+ 25377667) - Nevada Collection