Historically Significant Grouping Related to the Monitor Iron Clad Gun Boat
Original Patent Model of the Turret for the Monitor - This detailed Patent Model weighs 25 pounds and constructed of lead and iron reinforcing bolts. The pair of Ports for which the cannon to fire.
The interior of the patent model has original newspaper from 1862 to separate the interior metal band from the body.
The revolving gun turret is the most famous feature of the USS Monitor. While the ship's designer, John Ericsson, was not the first to envision a revolving turret, his design for the Monitor was the first completed turreted naval vessel to be built.
The turret was 21 1/2 feet in diameter and nine feet tall. It was constructed of eight one-inch-thick iron plates that, with the exception of the first two layers, were bolted together so that they could be easily replaced if needed. It weighed about 120 tons and was able to rotate with the help of two steam engines that used a crank to turn four gears.
The position and shape of the turret on the Monitor led to it being referred to as a "cheesebox on a raft”.
Certified to be the original model from the U.S. Patent Office. 40,535 Michael A. Collins of Chelsea, Suffolk County, Mass.
Old Ink Tag with original ribbon: No. 40,535 – 1863
W.H. Collins. Monitor Turrets. Patented Nov. 3rd 1863
Reverse has a period pencil note stating: Iron Clad Vessels and the date of “1863”
Patent Model #2
Wooden Patent Model for the shutters for the Cannon Port Holes on the Iron Clad Vessels. This articulating wooden Patent Model measures “ x” and was designed to give some protection from the elements.
Certified to be the original model from the U.S. Patent Office. 38,098 Cliff Petersen Collection 2444 Wilshire BLVD., Suite 406, Santa Monica. CA 90403
Old Ink Tag with original ribbon: No. 38,089 – 1863
B.H. Bartol Shutters for the Port-Holes of Iron Clad Vessels. Patented April 7th, 1863
Reverse has a date of “1863”
Accompanying the items listed above are a pair of folk art hand carved models of the USS Monitor and The Merrimack. They were originally purchased from the estate of Patrick Hannan - Born in Ireland, circa 1826, Patrick Hannan was a machinist by trade. Hannan enlisted in New York as a first-class fireman for a three-year term in February 1862 and was transferred to the USS Monitor that same month. He survived the ship’s sinking and was transferred to the USS Brandywine and North Carolina before he was assigned to the USS Keokuk. He participated in DuPont’s attack on Charleston until the Keokuk foundered off Morris Island. He was then transferred to the USS Vermont and Ohio. He was discharged May 1863 and worked as an engineer until he died of pneumonia in 1892.
Additionally serval reference books detailing the history of the construction and engagements of the iron clads and a pair of 1960 models of the same.
Additional photos available upon request.
Inventory Number: GRO 001