This coin is an upgrade for the set, and was much more challenging to locate then I would have originally thought. The coin has spent a lot of time in an album as evidenced by the bullet toning with dark blue rims turning to burnt orange. the reverse has similar colors but much softer with a satin like luster. Total PCGS AU population is 78 with 31 graded AU 58. The BCCS rating is R2.
Barber Dimes with mintages under 1 million are usually some of the scarcer dates. The 1892-O has a mintage of about 3.8 million, therefore, it is definitely not the most common date or one of the lowest. However, it is scarce in Uncirculated condition, especially in MS65 and higher. In MS66 it is very scarce and in MS67 or higher it is considered rare.