The Tesseron family, who made their fortune in Cognac (but are probably best known by wine lovers as the proprietor of Pontet Canet and Lafon Rochet) released tiny quantities of single vintage Cognacs. Although French law does not permit a vintage date to be used, this is all from 1929, and is very limited in availability. I'm not an expert on Cognac, but anything this smooth, silky, potent, and aromatic, is truly great stuff. It is about as ethereal Cognac as anyone could ever hope to drink.