Gordon Wrubel: The Large Date has an 8 that is LARGER than the adjacent 1s and extends ABOVE their tops. The Small Date variety has a smaller 8 that is about the SAME size as the adjacent 1s and is BELOW their tops. The Small Date is slightly scarcer than the Large Date but they are about equal in top condition.
In terms of the number of Dimes that have been certified, the 1814 is the third most common date of the Capped Bust, Small Diameter type (the most common is the 1821 followed by the 1820). 1814 Dimes are found in three major varieties: Large Date, Small Date and STATESOF. Of those three, the Large Date is the most common by a significant margin. Most 1814 Large Date Dimes appear in the grades of MS-63 and MS-64. The finest examples certified by PCGS are a trio of MS-66s.
Douglas C. Kaselitz Collection - Stack's/Bowers 7/2015:5120, $58,750
Greenhill Collection - Goldbergs 9/2006:1475, $27,600