I got this one on one of the Facebook coin groups that I belong to. 1827 has so many pairings, 49, which sometimes makes identification, especially just from photos difficult. However, obverse 23 was only used on 2 pairings, O-136 and O-137. On well preserved specimens one can see the upper loop of what is ostensibly another 8 just peeking over the milling. The two pairings are rated R-4 and R-6 respectively. This one is unfortunately the R-4 O-136, all in all not a bad find at all.