It's an unusual style - not any named conventional style I'm familiar with. Judging by the darkening of the raw wood, I'd guess it to be made somewhere from 1890 - 1920. This fits stylistically as well. The carved decoration is applied to the post (as opposed to the carving being done as part of the post), which indicates a factory-made piece. The wood appears to be oak. It's in fine condition and the wood is attractive.