Decanter Labels

how to determine the value of something?
I have two bottles of old wine with the wine still in them …. has never been opened. At the top of both are glass globes to hold a candle pillar. The label is still one of the decanters.
If not a Bordeaux, then most likely is not worth much, need the name ….
Bordeaux 2009: Corinne Mentzelopoulos of Château Margaux #2