1914/3-D buffalo nickel

The 1914/3 buffalo nickel from the Philadelphia mint is a well established red book variety. Furthermore, several 1914/3-S nickels have been discovered. However, the 1914/3-D nickel seems to be an extreme rarity. How many such coins have been discovered and/or graded?
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An authorized PCGS dealer, and a contributor to the Red Book.
a.k.a "The BUFFINATOR"
ANACSs I believe also will not certify any 1914/3
SEGS will certify 1914/3 varieties
PCGS will currently certify two of the Phila 1914/3 varieties
Kevin
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Here is a picture of the coin showing the obverse die break

a.k.a "The BUFFINATOR"