The history behind it is that it was used by the Confederate states of the Civil War and the Government of National Defense in the Franco-Prussian War
Chambered in .38 and .42 caliber, this was a cap and ball revolver and took a long time to reload, the twist is that it had a second barrel on the underside chambered in 16 or 20 Gauge.
I think this would be a unique gun to add because it would be a second 2 in 1 to the game behind the M30 Luftwaffe Drilling