More than likely it was an air-cured twist of Nicotiana Rustica, maybe similar to this sold at one of those re-enactment supply shops:
http://www.gggodwin.com/prod-326.htm
Here's a classic horn from the Guilford Courthouse National Military Park:
http://www.nps.gov/museum/exhibits/revwar/image_gal/gucoimg/guco1588pipebox.html
Jefferson records that 9,787 pounds of tobacco were made at "Moncello" in 1768.
1770-1790: Tobacco remained the chief crop at Monticello during this time period.
1776: AMERICAN REVOLUTION Along "Tobacco Coast" (the Chesapeake), the Revolutionary War was variously known as "The Tobacco War." Growers had found themselves perpetually in debt to British merchants; by 1776, growers owed the mercantile houses millions of pounds. British tobacco taxes are a further grievance. Tobacco helps finance the Revolution by serving as collateral for the loan Benjamin Franklin won from France--the security was 5 million pounds of Virginia tobacco. George Washington once appealed to his countrymen for aid to the army: "If you can't send money, send tobacco." During the war, it was tobacco exports that the fledgling government used to build up credits abroad. And, when the war was over, Americans turned to tobacco taxes to help repay the revolutionary war debt.