I put this Dansco collection away about 30 years ago. This year I took the set apart and sent about half of the collection to PCGS. This 1875 graded AU-50 and I believe it's the S-6, not sure. Not much extra value but fun to find something I never knew I had. File lines around the ear. Don't have a reverse image right now but will post it when possible.
There's a nice die crack through UNITED out to the rim as well. It's always fun finding new things about a coin you've had for a long time. It's like getting a new coin. I'm not convinced that it's Snow-6 though. Yours seems to be missing the heavy file lines south of the headband. I don't know how to interpret all the cross references though. https://indiancentvarieties.com/1875_varieties.html under their variety #14?