Are you asking a question, or do you already know the answer? Some coins don't need there natural mint luster to be mint state, such as some lincoln cents, buffalo nickels, and some other coins. Where areas luster is a thing to look for, it doesn't have to be there that I know of for a coin to be mint state. Now if it is unnaturally gone, removed by harsh cleaning or so, NGC nor PCGS will slab them, because then they are problem coins, and in there opinion, ungradable. Does any of this answer your question? There is I am wrong in some things I have said, and in that case it won't be long till someone will come along and corrects me, and all. If you don't mind me asking, what prompted this question, did you see some coins without mint luster that are slabbed? Phoenix
Phoenix, In particular silver coins with no luster called mint state. Have seen some,but did not agree with grade in any of them???? IMHO>
My error on original post,let me rephrase: What i think i know is that "Silver" coins without mint luster( Not talking about toning here)can not be mintstate! Have seen this misrepresentation numerous times form GRADING SERVICES.Also see Au58's in 63 Holders..This is bad news especially for the beginner that doesn't know the difference. It's hard to be involved in this wonderful hobby when fooled by INCONSISTANCEY!
We might be having a nomencature issue here. here is a link to a few definitions that specifically designate luster as a feature of business strike coins and NOT proof coinage: http://www.google.com/search?hl=en&defl=en&q=define:mint+luster&sa=X&oi=glossary_definition&ct=title Basically, luster is the visual effect of flow lines on a coin, but a coin struck with highly polished dies (proofs and ultra deep dmpl's) will have no flow lines to scatter the light; instead the light is merely reflected, which is not luster. Luster develops over the continued use of the die as the metal flowing across them from repeated use causes "damage" to the die, and eventually the luster becomes muted as the flow lines damage the die further to the point that they are so deep that light gets lost in them instead of being properly scattered.
Specifically: PCI<NNC<PSGS<ANACS(old),and yes even the "first rate"ones too! Have documentation ie 1 example of inconsistency-PCI XF45,NGC would not cross over,cracked coin out and it came back AU58 NGC,then submitted to PCGS where it was put in a MS62 holder!!!!!!!!!!!!!!!!!!Yup. I know of a person that sent a 16-D Dime in over a dozen times before he got his MS63 holder.
Season's Greetings. L@@k at the 1875 Trade $ on eBay,Item#330198098758"specifically" the pics.MS63 OGH ,MS63 ngc THEN MS64 NGC. Slabs are great for second opinions as to genuiness,altered surfaces,cleaned and NOT slabbed,but as far as the numerical grade goes it has little meaning,especially to the real value of the coin. NOTE MY OPINIONS MAY DIFFER FROM YOURS SO"DO it your way"and try to enjoy. Merry Christmas.
Fair enough. Let's try these links - From a description on Heritage - 1845 Half Dime PF68 Pay attention to this sentence - " The fields are deeply mirror like and the coin has radiant proof luster under exquisite deep blue, violet and reddish-gold toning." From a Teltrade description - 1866 PF64 CAM This sentence - "Both obverse and reverse are fully brilliant with exceptional Proof luster." From Jim Haleprin's - How To Grade Coins This sentence - "PR-65Proof)This is an above average proof coin with no blemishes dust or much else on the surface.The luster should be medium to high mirrorlike." There are many places to look where you will see that Proof coins are described as having luster. You can try - HERE - for example. While I understand what you mean, Proof coins do have luster. It is just different than the luster found on business strike coins. There is metal flow on any coin that is struck with dies. It can be no other way, the metal flows into the Proof dies and fills the recesses just like with business strikes. But because the dies and the planchets are highly polished on Proofs, these flow lines are much less visible than they are on business strikes. But with magnification, one can still the flow lines. And if there are flow lines, there is luster.