Black Powder Revolver
Double-Action "Muzzle loader"
The Starr Revolver was an early example of a double-action revolver that predates the metallic cartridge era.
The Starr revolver was the 3rd most commonly used revolver by the Union Army in the Civil War.
The revolver in the picture (and the example used in the class) is a high quality reproduction made by Pietta.