Any way to identify the owner of a lost iPhone?

Hey all!

So I recently found an iPhone at my workplace, apparently my coworkers said it has been there for about a year now. I wanted to know if there was any way to identify the owner of the phone. There were no identifying items or sim card I could find. Does anyone have any idea on what to do with it?

Edit: additional information: The phone has been factory reset and put on activation lock