During a recent trip to southern Oregon, I picked up a piece of driftwood. About 8 inches long, perfectly shaped for my hand, already smoothed by the ocean. I'm not sure what kind of wood it is. There are many coastal redwoods in the region where i found it, but I don't think it's redwood. It's too light in color - most likely it's some sort of conifer: pine, spruce or fir.
What would be the best way to preserve it? Right now I'm letting it dry out and some rough edges are appearing around some of the age rings. Should I sand it once I'm sure it's completely dry?