Estimated grade. Sold by B. Max Mehl Jun '41 price realized $0.7
Ron Guth: The 1843-O Quarter Dollar appears to have survived in numbers similar to those of most of the other dates from the 1840's. In circulated grades, this date can be found with relative ease up to Extremely Fine. However, in Mint State, this date becomes decidedly rare. According to the PCGS Poipulation Report, the 1843-O Quarter is the third rarest of all the O-Mint Quarters from the 1840s (exceeded only by the 1849-O and the 1847-O). To date, PCGS has certified only 6 Mint State 1843-O Quarter Dollars, the finest of which is a single PCGS MS64.