Extremely scarce in all grades, R4.5.
David Akers: This is a very scarce issue in any mint state grade, although specimens below the Gem level can be located with only moderate difficulty. Accurately graded Gems, however, are very rare, although not quite as much so as the other S Mint issues from 1900-1908. Still, one could easily spend a year or more looking for [a] Gem quality 1906-S Half Dollar.
John C. Hugon Collection - Heritage 1/2005:4244, $46,000 - Harry Laibstain - Dr. Peter and Janice Shireman Collection - Heritage 1/2016:5409, $82,250
Numismatics, Ltd. 2/1976 - James Bennett Pryor - Bowers & Merena 1/1996:300 - David Akers 2/2006 - Dr. Steven Duckor - Heritage 8/2010:3218, $19,550
Dr. Thaine Price Collection - David Akers 5/1998:169, $9,900 - Dale Friend #2 All-Time PCGS Registry Set of Barber Half Dollars - Heritage 1/2009:3899 - Greensboro Collection, Part VI - Heritage 10/2015:3302, $12,337.50
Harry Laibstain, sold privately in 6/2008 - Eugene H. Gardner Collection - Heritage 5/2015:98533, $15,275