Need help on a 1955-D Washington Quarter

This is a slabbed coin graded at MS66 - can anyone tell me what the Blue Book price is for this coin - we cannot find it in our copy of the Blue Book ????????
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Comments
Liberty: Parent of Science & Industry
Hopefully your coin is in a PCGs or even NGC holder.......
Though I find that NGC allows more marks then PCgs.......
"Senorita HepKitty"
"I want a real cool Kitty from Hepcat City, to stay in step with me" - Bill Carter
1955-D 25C MS66 PCGS
Sold For: $517.50
Ended: March 20, 2003
10:00 PM CST
1955-D 25C MS66 PCGS
Sold For: $224.25
Ended: August 6, 2003
8:00 PM CDT
1955-D 25C MS66 W NGC
Sold For: $414.00
Ended: August 6, 2003
8:00 PM CDT