Ron Guth:
The 1807 Quarter Dollar has the largest mintage of all the Draped Bust Quarter Dollars, but it is nowehere near the most common. In terms of the number of coins graded by PCGS, only the 1796 and 1804 Quarters have lower populations. Fortunately, collectors saved a sufficient number of Mint State examples such that the PCGS CoinFacts Condition Census is now filled with MS64 to MS65 examples.
Most examples of this date show clashmarks (sometimes evidence of multiple clashings) and weak strikes at the peripheries. It is doubtful if a fully struck example exists.