Lost alto saxophone with scratches and a unique engraving on the bell near North Shore, Pittsburgh.

I noticed my alto saxophone was missing after a picnic with friends at North Shore this past Saturday. It has a few scratches but is generally in good condition and has a unique engraving on the bell. I remember putting it down for a moment, but when I went back to check, it was gone. I really hope someone might have picked it up and can help me get it back. If found, please contact me.