Thats one you don't see in MS on this forum very often spot or no spot its an MS coin rare very valuable and maybe 400 surive in true original mint state. Congratulations on your acquiring it...I have never held an MS 1914 D in my hand all the ones I own are brown LOL. I say MS62 RD.
I can see a grading company going higher on this one maybe a MS64RB? I personally wouldn't want it as I try to stay away from carbon spotting.
My own grade is MS63RB
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1982, Early American Coppers Member (EAC) #6202, Colonial Coin Collectors Club (C4), Conder Token Collector Club (CTCC), & Numismatic Bibliomania Society (NBS) Member, 2¢ variety collector.