Savage Navy Revolver
The Savage firearm company developed a revolver design in the late 1850s that included two triggers. One that rotated the cylinder and cooked the hammer. The second trigger fired the pistol. They refined the design for this version of the pistol. 20,000 were produced with a number purchased by the US Army.
This example is serial number 708 and does have US inspectors cartouche in the left grip. The metal is a grey brown patina with scattered areas of pitting. The firm name on the topstrap is complete, deep and readable. The action works.