Old Bottles in New Orleans

This picture is of a bottle I found under my 1850's home in New Orleans. So far no one is familiar with it. Any ideas? Thanks so much. Just started digging for fun. It's addictive! lol

That is a very cool looking bottle.  while I suspect it might be a sauce or perfume, it reminds me of the popular cabin style bottles that were often bitters container.  The volume looks to be too small to be either a bitters or a whiskey, so I am coming down on the side of Sauce or perfume. If in good shape, and clean it might bring $50-75. Exactly what were you doing digging under your house? Digger