Fireplace with gas log but also burns wood????

[GrimmLady]

My fireplace has a gas hookup and uses ceramic logs but I want to burn wood logs. There is a key to turn on the gas and it does have a chimney/flue however I don’t know how to tell if it is open or sealed. The fire box is metal through and I don’t see a tag indicating it to be exclusively ceramic or wood or can burn both. I am trying to add a picture but I’m not sure how to do it

[Bevy Rich]

I just moved into a home and trying to figure out the fireplace. Someone has burnt wood in it but I am not sure if it was a gas buring fireplace.does have a key spot bit I can't see where gas hookup is.