Coin Submissions MS65 MS66
1974D 7344 87% 8%
1976D 5206 86% 9%
1977D 15197 87% 12%
1978D 4785 82% 12%
Compare to PCGS:
Coin Submissions MS65 MS66
1974D 2798 51% 15%
1976D 3763 54% 21%
1977D 2552 52% 17%
1978D 2244 40% 23%The submission totals at NGC signal that these figured do include Big Sky Hoard
Eisenhower dollars selected for certification by Littleton. It stands to reason that market will see a disproportionate number of BSH Dollars in NGC holders for these Denver dates.
Looking at the distribution of grades, we see an unusual concentration of MS-65 coins at NGC. Say what you will about the difference between the two firms grading cultures, I'd say any date with 85+% MS-65 out of thousands of submissions is unusual.
My guess is that there was a bulk grading arrangement between the two firms- where coins that "made MS-65" would be holdered (whether they were 66 or 65* or what not) and coins that didn't make 65 wouldn't be holdered and instead sold raw.
When you have 200+ $1000 bags of Ikes to go through, there is no doubt that you will find lots of gems- even in a tough series like the Ike- but to see these types of numbers makes me think that the grade on the holder may not be the grade of the coin.