I think I understand now. The official name is Leon's on Six Tre'. It's the newest addition to the mini-empire of Leon's, once a great name in Chicago barbecue. There are two parts to the new Leon's: a take out side serving the usual Leon's barbecue menu and a sit down restaurant with a longer menu (including plenty of pancakes, like the old Tre's Pancake House). On weekends the restaurant offers a buffet. I haven't tried it yet but one day I will. Thanks for mentioning this place.
Leon's on Six Tre'
1528 E 63rd St
Chicago
773-955-1174
Other Leon's:
Leon's #1
Cottage Grove at 83rd
Chicago
773-488-4556
Leon's #2
59th at Racine
Chicago
773-778-7828
Leon's #3
79th at East End
Chicago
773-731-1454
It's interesting that a newly printed advertising card doesn't list the Leon's on S Archer or the one on N Ashland.