$49.95 – Ships, Cruise Lines, Navigation, Turnpikes, Bridges and Canals – Beautifully engraved certificate from the American Dredging Company issued no later than 1901. This historic document has an ornate border around it with vignettes of ships and dreggers. This item is hand signed by the company?s president and secretary and is over 106 years old.In 1993, Weeks M…