Cleaning your 1917 Buffalo
I discovered this method of cleaning nickles completely by accident, you may want to give it a try.
Be sure to use a glass or ceramic container with a flat bottom (I use an ash tray).
Place your nickle in the container and pour lime away on it, flip it over and pour some more on the other side until your nickle is submerged, it will foam up a bit, don't panic!
I leave mine in for a few hours and it will have a white film on it, then I rinse it off under tap water and lightly rub off the film with my fingers.
If you like the way it looks make sure you thoroughly get all of the lime away off!, if not, throw it in for a couple more hours.
If you overdo this method it will start to look like its been sandblasted.
If your nervous about trying it use some dug clad nickles first and experiment with it.
BTW...nice nickle!