Many village kukris have wooden scabbards carved in folk art designs. It is not uncommon to see details carved in these which imitate the trappings of the leather-covered scabbards. (See the carved "belt and buttons" design in the top one shown here). Yours, on the other hand, is a leather scabbard tooled with the designs common to wooden ones. Also, as Simon says, the ridge to secure a frog is a military design which I have not observed on a village scabbard.
I do note on closer examination of your pictures that there appear to be two groups of apparent nail holes on the back of your scabbard near the throat, and, a karda's length away, a single nail hole just on the spine side of the seam. These are consistent with the usual method of attaching pockets to a scabbard, rather than the frog attachment I showed above.
