This is an Italian 1834 Dragoon Saber. And inspected by Roatis Francesco with the RF stamp on both the blade and the hilt. Lot of them were manufactured in Solingen and many were bought up in the early stages of the Civil War. Italy was fighting their Unification wars in the same period. Could be a family heirloom brought in by immigrants.
No way to tell which is the case. The Danes started using these in 1843. If someone tells you the Danes invented these first, they're wrong. The Italians introduced the hilt in 1828.
The Dane has a groved backstrap on the hilt, unlike the smooth Italian. Thank you for you understanding. The item "Italian 1834 Dragoon Sabre Cavalry Sword Saber Pre CIVIL WAR RF Stamp & Scabbard" is in sale since Monday, January 20, 2020.
This item is in the category "Collectibles\Militaria\Civil War (1861-65)\Original Period Items\Edged Weapons". The seller is "quality_redemptions" and is located in Richmond, Illinois. This item can be shipped worldwide.