These are some (old) historical prices from the "Seated Dimes" website:

$675 (2-08-12), $345 (9-30-12), $430 (10-15-12), $335 (11-16-12)

http://www.seateddimevarieties.com/BAR/data1.htm

__________________
National Collection Images: G. Harry Stine Collection/The Museum of Flight.