There is a really huge price gap in the 1963P Quarter
Sales of NCG graded 1963P quarters at Heritage in MS-67 have been:
$205 on 3/6/06
$276 on 3/28/05
$241 on 5/5/03
$201 on 4/8/03
$258 on 3/3/03
$213 on 3/3/03 and
$235 on 1/13/03
while PCGS coins have sold for:
$2530 on 1/15/05
$3680 on 11/6/04
$3220 on 6/5/04 and
$3450 on 11/7/03.
Is this typical? What is the explanation for this difference?