I am new to my house and scratching my head about this faucet. I grew up in a home built in 1960, and each outdoor faucet had a shut off valve inside. This faucet does not have one. The seller of the home also did not shut this off last winter.
I have another outdoor faucet at the house that is an obvious non-freeze one based on googling and the water dripping when it shuts off. I'm more puzzled by this one.
I lean towards this being a frost free faucet, but would rather err on the side of paranoia...
Edit: At suggestion of commenters below. Here is the inside. It doesn't seem like copper all the way. It seems like this may not be the "best", but could be helping with the pipe not freezing. One thing that complicates this is that the faucet goes into a wall that is perpendicular to the home itself. I guess I'll have it professionally evaluated. Greatly appreciate everyone's helpful comments.