Ron Guth:
Nearly 30 years of certification have given us a much clearer picture of the grade distribution of most American coins. This allows us to see what changes, if any, have occurred over the years in our perception of rarity and quality. For the 1914-D $20, the populations in grades from MS62 to MS65 confirm that this is a common date and literally thousands have been certified in each of those grades. The rarity of MS-66 examples and the extreme rarity of MS67 examples support the assertions made by David Akers decades ago. To date, the only 1914-D in MS67 is the remarkable PCGS MS67 in the Simpson collection.