J. Colvin Randall Collection - Lyman H. Low 7/1903:969 - John M. Clapp Collection - John H. Clapp Collection, sold intact in 1942 - Louis E. Eliasberg, Sr. Collection - Bowers & Merena 4/1997:2065, $59,400 - Dale Friend Collection - Heritage 1/2009:3867, not sold
William C. Atwater Collection - B. Max Mehl 6/1946:581 - James A. Stack Collection - Stack’s 3/1975:572 - Queller Family Collection of U.S. Half Dollars - Stack’s 10/2002:723, $80,500 - American Numismatic Rarities 7/2005:1186, $97,750
Hollinbeck Coin Co., sold privately in 5/1960 - R.E. Cox, Jr. Collection - Stack's 4/1962:2044 - David Akers, sold privately in 2004 - Dr. & Mrs. Steven L. Duckor Barber Half Dollar Collection - Heritage 8/2010:3174, $80,500
Superior 1/1989:4524 - Superior 10/1989:3770, $20,900 - Heritage 5/2008:743, $92,000 - Harry Laibstain, sold privately on 5/28/2008 - Dr. & Mrs. Peter K. Shireman Collection - Heritage 1/2016:5382, $85,188
Paramount 1975:870 - Paramount “Auction ‘86” 7/1986:1659 - Dr. Thaine B. Price Collection - David Akers 5/1998:125 $55,000 - John C. Hugon Collection - Heritage 1/2005:4200, $69,000 - Joseph C. Thomas Collection - Heritage 1/2011:5571, $63,250 - Heritage 6/2011:3674, not sold
Harry Laibstain - Dr. Peter K. Shireman - Michael F. Hayes - Elbesaar Collection (PCGS Set Registry Set) - Heritage 8/2011:7202, $37,375
Superior “Auction '81” 7/1981:755 - George "Buddy" Byers Collection - Stack's 10/2006:1312, $48,875 - Eugene H. Gardner Collection - Heritage 6/2014:30549, $36,013.75
Ron Guth: The 1892-O Micro O half dollar is the rarest in the Barber half dollar series. It is believed that the mintmark punch used by the engraver was meant for a quarter dollar rather than the half dollar. A population study was undertaken about 2003 by a member of the Barber Collectors Society (Michael Flanagan) and he published all known examples (certified and raw) for a total of just over 50 coins.
The 1892-O Micro O half dollar is usually well struck but often comes with a bit of weakness in the upper right shield and on the eagle's wing. Uncirculated examples often have proof-like or semi proof-like fields. A die crack through the date is seen in most examples. It is believed that the improperly-sized mintmark was discovered fairly early and that the die was then taken out of service, thus accounting for the relatively few examples that are known. This variety was discovered not very long afterwards and examples were sought even in the early 1900s.
-- Contributed by Dr. Peter Shireman
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