Extremely lustrous with just a bit of golden toning. The over mintmark is sharp and clear to the naked eye.
The 1875-S over CC Trade Dollar is one of a group of interesting and unexpected varieties created when mint engravers used dies intended for one of the branch mints, then overpunched the mintmark with that from another. Thus, we see coins such as the 1875-S/CC Trade Dollar, the 1900-O/CC Morgan Dollar. and later issues such as the 1955-D/S Nickel, all of which are important coins to collectors.
Currently, the 1875-S/CC is the only major Trade Dollar variety recognized by PCGS. As such, it is the rarest of all the Trade Dollars in Mint State, even edging out all of the celebrated CC issues. Of the 79 examples shown on the PCGS Population Report (as of January 2014), all of the survivors are distributed over a range of grades from MS61 to MS64, plus a lone PCGS MS65. The 1875-S/CC Trade Dollar is one of only four dates in the series that is not represented by coins above MS65 (the other three are the 1873-CC, 1874-S, and the 1876-CC).
Heritage 2/2007:3702, $20,700 - Legend Numismatics, sold privately in 7/2007 - Eugene H. Gardner Collection, Part III - Heritage 5/2015:98589, $24,675 - Legend Rare Coin Auctions 2/2016:287, $27,025