I have an 1886 Morgan dollar in UNC. 61 with uncirculated details, an 1878 S Morgan dollar in AU or UNC which is shiny on the reverse and a little shiny on the obverse, an 1878 Morgan dollar in EF or AU which was polished, an 1883 Morgan dollar in MS-64 but is toned, it looks like a little rainbow toning is going on there but the toning just looks like dirt or something brownish, a little shiny on both obverse and reverse, an 1891 O Morgan dollar in F-EF which was cleaned, a 1921 Morgan dollar in AU or UNC, and a 1921 VAM 3b2 Pitted Reverse Morgan dollar in MS-64 which looks nice, but isn't extremely shiny. But it's not cleaned. I bought it for twenty five dollars, so I got a great deal! And sorry, I only have one picture, but it's the last one that I mentioned, 1921 VAM 3b2 Pitted Reverse.
What's your most valuable coin? Mine is a 1921 VAM 3b2 Pitted Reverse Morgan Dollar in MS 64. In the pictures below, you might see the pitted part above the "D" and below the right tail feathers.