French Early 19th Century Officers Sword, Gilt & Blue Panel

Original period manufacture. Frankly I haven't been too successful in identifying this neat old sword, so my best guess is French cavalry circa 1820-1840.The curved steel blade measures 29 inches in length, with traces of blue panels with gilt decoration about 10 inches in length on each side. On the obverse ricasso is a riband with the letters K S in a cursive script. The blade is quite sharp with that operation done a long time ago. Mellow brass two branch guard,backstrap and pommel with laurelleaf decoration. Original leather wrapped grip which shows wear to its surface with the cord wrappingexposed in spots, single strand twisted wire binding. Sheet steel scabbard with what looks to be a zinc wash over its surface, dual brass suspension rings. This from Eric: 'M1821 French infantry officer, made by Kirschbaum & Schimmelbursch for export. Used in Texican Mexican war and Civil War. Not sure of other countries that used this pattern.'And this from Windings Font: 'Hi, I think this sabre may be a French M1821 infantry officer sabre. The Russian and Dutch infantry also used a similar pattern though if I remember correctly. '