Hi Tim,
the blade 'rings' when tapped...suggesting good tempered steel. As mentioned before, the blade is quite sharp...even though there is no evidence of any re-sharpening. The rust I removed from the blade was very dark in colour, almost black, and was not 'loose'....hence the 'scraping'. It suggests reasonable age....early 20c...as a conservative estimate, but that is only my opinion. The blade seems very well made.....perhaps not locally made but, an adapted European blade
The hilt and overall finish is very good. It is a shame that there is no scabbard....assuming that it had one originally. If it did, It must have been weighted at the bottom to counteract the weight of the hilt....who knows??
There was another similarly constructed hilted short sword sold on eBay recently...the blade was almost square (in cross section)....a stabbing weapon. The seller stated that it had come from Benin (Yoruba tribe). Picture below.. I have been offered a similar sword (from another source), the hilt is cast bronze with a zooamorphic design with the same 'dirk' like blade.
Has anyone seen examples like this??