Feitian and Five Star are just registered trademarks. Feitian is a trademark for export, and Five Star is a trademark for domestic sales. It has nothing to do with the type of wine. Your wine is Zhizhen (paper box treasure) Moutai. The quality of the wine is the same as ordinary Moutai, but the packaging is different (one is simple packaging, the other is in a gift box, that's it.) The current market price of 1991 Zhizhen is 1600- A bottle costs around 1800~~~~ (500ml specification).