1948 D Franklin Half Dollar question

I've been offered a 1948 D Franklin Half Dollar MS64FBL FS801 DDR in trade for an item. I have searched Heritage and Ebay and only found an MS66 example. Is their a place to find values of such a coin? Thank you
Jim
Jim
When a man who is honestly mistaken hears the truth, he will either quit being mistaken or cease to be honest....Abraham Lincoln
Patriotism is supporting your country all the time, and your government when it deserves it.....Mark Twain
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Comments
and they're cold.
I don't want nobody to shoot me in the foxhole."
Mary
Best Franklin Website
But the P's don't show the same degree of doubling as the D's. Occasionally you will find a D with a really nice spread.
and they're cold.
I don't want nobody to shoot me in the foxhole."
Mary
Best Franklin Website
As far as value, if it's in a PCGS holder then it's worth between $100-200 because of the Registry. If it's ANACS, ICG, etc. then $40-$50 sounds about right.
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