David Akers: Only 390,000 pieces were minted of this issue, the lowest mintage figure of any branch mint Barber Half Dollar, and the lowest mintage of the entire series prior to 1913. The 1892-O is not quite as rare as the low mintage would imply, however, and average to Choice Uncirculated examples are only scarce, not rare. In Gem condition, though, the 1892-O is definitely rare...
Thaine Price - David Akers 5/1998:124 - John C. Hugon - Heritage 1/2005:4199, $103,500 - Simpson Collection
Fred Porter Collection - Charles Steigerwalt 12/1893 - J.M. Clapp Collection - John H. Clapp Collection, sold intact in 1942 - Louis E. Eliasberg, Sr. Collection - Bowers & Merena 4/1997:2064, $18,700 - American Numismatic Rarities 6/2005:78, $37,375 - Eugene H. Gardner Collection - Heritage 6/2014:30548, $64,625
Harry Laibstain - Dr. Peter Shireman