Hi, end of roll toning is a good possibility in light of the clean edge. ICG is known to overgrade Moderns. I think they are trying to lose that reputation however. See if they back their grading on a re-submittal. They have been around a while, maybe the damage worsened after it was slabbed. I only own one ICG slabbed coin, and it is a colonial.The main issue is that you are happy with the coins! Mike

Description
1949-D 50C MS65 Full Bell Lines PCGS.
Sharply struck and highly lustrous, with bright surfaces that are essentially untoned and only have a few scattered abrasions and luster breaks. The detail on the bell lines is amazingly clear and full.(#86654) (Registry values: N991)
Previous Prices from Heritage Auctions
Lot Date Grade Service Realized
Sale 384, Lot 3571 Saturday, September 24, 2005 65 PCGS
$1,265.00 Sale 383, Lot 877 Monday, August 1, 2005 65 PCGS
$460.00 Sale 383, Lot 876 Monday, August 1, 2005 65 NGC
$517.50 Sale 383, Lot 875 Monday, August 1, 2005 65 PCGS
$460.00 Sale 65055, Lot 24402 Sunday, May 29, 2005 65 PCGS
$747.50 Price Guide*
Grade
Coin World(Trends) Numismedia
Retail Numismedia
Wholesale Numismedia
NGC (nmn) Numismedia
PCGS (nmp) Coin
Universe
64 --- $170 $136 $120 $125 $200
65 ---
$1,170 $935 $820 $850 $1,000