18th Century Bottles and Cork Stoppers.

From the research I have done to date, bottle corks appear to have been straight sided or possibly had a slight taper. Bottle corks were manufactured from the bark of the Cork Oak tree.

Original 1712 bottle corks.

http://www.aia.umd.edu/seeking_liberty/RTwine_tobacco.html;

By Chardin.

By Chardin.

Unknown French artist 18th century.

Cork Making By Diderot.

Detail of cork making By Diderot.

Corkscrew Ring with Cover c. 1700 - 1730.

http://www.scribd.com/doc/200132228/Drinking-Glass-Bottles-Decanters;

English or American Corkscrew & Pick c. 1725 - 1800(Winterthur)

http://www.scribd.com/doc/200132228/Drinking-Glass-Bottles-Decanters;

Folding Flat Bow corkscrew.

http://www.scribd.com/doc/200132228/Drinking-Glass-Bottles-Decanters;

English Silver & Iron Corkscrew and Caseby John Harvey of London c. 1750.

http://www.scribd.com/doc/200132228/Drinking-Glass-Bottles-Decanters;