1834 10C Large 4 MS63 Certification #16984123, PCGS #4526
1834 Dimes are found with either a Small 4 or a Large 4 in the date (the image above shows the clear difference between the two). According to the PCGS Population Report, the two types appear to be of equal rarity, though there are fewer Mint State examples of the Large 4. Of the Mint State 1834 Large Date Dimes, the most common grade is MS-64 and the highest grade is MS-67 (where three appear at that level as of May 2011).
Gordon WrubelQuickfinder Notes: On the Large 4 variety the 4 is MUCH LARGER than the adjacent 3. The Small 4 is the SAME SIZE as the adjacent 3. The Large 4 is less common in Mint State, 50 versus 77, as of Sept, 2012. But in the highest grades the Large 4 shows three examples in MS 67, and three in MS 66. The Small 4 shows only 1 example in MS 67 and two in MS 66.