David Akers (1975/88): The 1849 is one of the most common dates of the 1840's and it is relatively easy to obtain in VF or EF condition. In high grade it is scarce, roughly comparable to the 1847 and 1847-O but more elusive in choice or gem condition. However, AU and uncirculated examples of this date are more available than similar quality examples of the other dates of this decade.
Some 1849 Eagles offered in the past were claimed to be overdates, i.e. "1849/8". However, the specimens I have examined appeared to me to be repunched dates rather than overdates and I do not believe a true overdate exists.