Exceedingly rare this grade! Only 1 finer in the registry at ms64+ A new finest known ms65 just showed up at heritage a few weeks ago. Is sold for 12K with buyers premium! This is a huge investment grade coin! It is on auction but you can make offers if you want it fast. Just send your best offer. See the HERITAGE Auction data below.
Sold on Aug 15, 2023 for:
$12,000.00includes Buyer's Premium (BP) 
1880-O $1 Hangnail, VAM-48, MS65 PCGS. Ex: Duke's Dollars. A Top 100 Variety. Two 1880-O VAMs utilize the "Hangnail" reverse, which shows a heavy die gouge extending down from the eagle's left (facing) talons, through the fletchings and tailfeathers. VAM-48 is the more plentiful of these two varieties, having a normal date (VAM-49 has an overdate feature). Attributed VAM-48 examples are scarce in Mint State and rare in MS64; this Gem example is the sole finest VAM-48 attributed at PCGS, making it an essential acquisition for advanced Registry collectors.

Luster is brilliant, yielding a strong cartwheel effect while illuminating boldly struck design elements. Neither side exhibits significant abrasions, and overall eye appeal is excellent.

Coin Index Numbers: (Variety PCGS# 133879, Base PCGS# 7114, Greysheet# 25141)

1880-O VAM-48 Hangnail Eagle, Doubled UNITED, Doubled 8

Discovered by Jeff Oxman, April 1999. Former 1880-O VAM-1A. VAM-1A discovered by Lewis Wotring, November 1971.
This coin is a TOP 100Morgan VAM.
48(formerly 1A) III236 · C3l (Hangnail Eagle, Doubled UNITED, Doubled 8) (176)
Obverse III236– Second 8 slightly doubled at lower left outside of top loop. Some specimens show line on base of 1 due to weak strike.
Reverse C3l– UNITED letters doubled towards rim and top of coin, left star strongly doubled towards rim, left wreath leaves slightly doubled on left edge. Die gouge through the eagle’s left tail feather and lower arrow feather. I O mint mark.