M1825 Cavalry saber
This saber is very similar to the Swedish M1825 for Husarer. The blade is slightly curved and heavy. The grip is leather wound wood. The saber was produced at Kongsberg.
The markings are slightly confusing. There is a small crowned C on the blade, This is for king Carl Johan (Swedish spelling) and not for Carl Gustaf Stads Gevär faktori in Sweden that used an just about identical mark.
This is one serious, solid saber!