(Civil War) Barbette Carriage for 10-Inch Rodman Gun #world #anewworldofunderstanging with the "Unisphere" globe right

with the "Unisphere" globe right at the center

the condition is good though the paper covers are weak

A fine folding map for the heart of the metropolis

one for Delta of the Nile

(Civil War) Barbette Carriage for 10-Inch Rodman Gun #world #anewworldofunderstanging with the "Unisphere" globe right(Civil War) Barbette Carriage for 10 Inch Rodman Gun., McClelland U. S. Govt., c. 1861 Detailed engineering engraving for wrought iron carriage that held the 10 inch gun. Thomas Jackson Rodman, a graduate of the military academy, developed a revolutionary method for manufacturing cannons. He theorized that cooling the interior of a cannon while keeping the outer surface hot would create a stronger and more durable weapon. This process, known as the