It was shelf marked GLC 25 years ago, I have no idea if this is correct, please see the pictures for identification.  Throttle and choke flaps open, I didn't turn the needle screws as I don't have a tiny enough screwdriver for that.  Greasy, dirty, ethanol fuel has never touched it as it's been sitting more than 25 years.  Sold as a core for rebuilding, use as is at your own risk.   See photos for the numbers and other markings, make sure this will fit your application, and please ask any questions before bidding, thank you.