Description
Francis Delacour was a notable fourbisseur or cutler with a workshop in Paris. Active from around 1830 to 1870. The company was supplying weapons to the Imperial Guard and a considerable amount of the workshop's output, an estimated 60% of the shop's output, was intended for export.
In November 1854 he earned the distinction Fournisseur Breveté de Sa Majesté L'Emperor or "Patented Supplier for His Highness the Emperor". He was the exclusive supplier for some models of swords for the imperial guard.

Etched maker's mark on a French pipe-back saber for the Thai market.
Listed at Mandarin Mansion in 2020.
"F. DELACOUR
FR BTE DE S.M. L'EMPEREUR
PARIS"
FR BTE DE S.M. L'EMPEREUR stands for Fournisseur Breveté de Sa Majesté L'Emperor or "Patented Supplier for His Highness the Emperor".
Notable works
A presentation sword given to Major General Ambrose E. Burnside, sold at Bonhams New York for US$ 271,000 including premium.