Any vintage from 1811 was regarded at the time as the greatest vintage in living memory, and today it is now regarded as Western Europe's finest vintage of the 19th century. In 1811 Napoleon visited the region and was presented a barrel of cognac as a gift.

The outstanding quality of the 1811 lead to the producers marking the vintage either with the date on the bottle, or, very rarely, a picture of the comet. This comet symbol has now become associated with the vintage.

As if this stellar cellar piece was not impressive enough, the sale at Expert Renard also features: a silver dining service, an extremely very rare oval mold on a solid copper plinth made to commemorated Napoleon III.