I have Pollock and both an old and a new Judd. According to the new Judd
(10th), Proof-66 is not priced, so we can assume that any assigned estimate will be greater than the astounding prices for the Proof-65.
Also, for all readers, the "Barber" obverse is not the Liberty Head that we know from the Barber series of 1892-1913, but a Seated Liberty designed by William Barber. This Seated Liberty is profiled Left, whereas the Longacre Seated is actually seated Rightward, but with her head turned Left.
They look like this below from the Pattern collectors at
www.uspatterns.com:
or like this form the same site:
http://ep.yimg.com/ip/I/uspatterns_2060_16708649 
