1908 U. S. Navy World Voyage Souvenir, Type V, San Francisco Reverse, NGC MS-63DPL.  Very Scarce (H-K R-5) overall, rarer still with nice surfaces that will grade - almost all seem to have gone directly into a pocket or purse and suffered as a result.  Only 9 certified at NGC, this is the only Deep Mirror Prooflike specimen, and an absolute grade rarity in and of itself as there is only one piece higher at MS-64PL (the piece offered here not in the NGC Census as of June 15, 2020).  The only MS-62PL sold recently at $109, and I think that was cheap (and perhaps reflected the limited market).  Figuring price for Top Pop and condition census pieces is always fraught with peril, given the limited trades, but given the difficulty in finding this HK number at all plus the grade makes me think I am in the ballpark.

NGC 4777233-003