Has a value been established for a 1999 pfset with close AM Lincoln??

One of our local club members is overly infactuated with this close AM open AM lincoln cent variety. He was asking about the 1999 Pf set that supposedly has the close AM Ms format lincoln cent? Does anybody know if this coin is carrying a premium or approx value. I told him I would check on here as a favor. Thanks
jim
jim
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His values for this particular coin are pretty close to being right though. I've seen a PCGS 66DCAM on eBay bought for near $500 and sold for $950. An NGC 67UCAM also sold for near $500 on eBay. Raw proof sets have been in the $600 range.