Mystery Hub Cap

OK. Anyone have a clue as to what this hub cap or "nut cover" fits? It's aluminum and about 10" dia. I've never seen the emblem before. NO. There's not a prize for the correct answer other than braggin' rights. 'Cause if you know what it goes to, you're one up on me and about 30 other "knowledgeable" people I've let look at it. Sure would like to know. Only thing I could think of would have been an Invicta and I can't even find one of those on the net.
http://img43.imageshack.us/img43/3449/hubcapweb2qt.th.jpg (http://img43.imageshack.us/my.php?image=hubcapweb2qt.jpg)