That filter has been on the car for a very long time. You can tell by the bubbled rust along the outer edge. I'd guess it's been in service for a year, depending on the humidity of the environment.
The swirls of emulsion suggest that you probably have water or coolant in your oil. If you cut the filter open, you can see how distorted the pleats are. That will also indicate if there was a significant amount of moisture in the oil.