Hi AD!
Here is an example I came across this morning! Exquisite (pic Below)
CUCHILLOS CANARIOS Canary Island knife / Punal or naife
http://www.swordsantiqueweapons.com
A very good Canary Island naife complete with its original sheath.
This example is 30cms long in the sheath, approx.. 29cms out and has a blade length of 17cms .
The hilt is of multiple stacked horn disks with thin brass spacers and brass inlay to several rings. The end caps are spun brass with decorative ring features and a tall capstan like pommel.
The blade is finely forged with distal taper and a circular bolster. One face is decorated in pin punch designs.
The sheath is leather and very well crafted. The ends are reinforced and a large dome like section of leather protects the hilt and likely offers better security within a belt or sash.
Its a harder to find knife in good condition.
Come on...AD let's see some master pieces created by you soon with filigree etching 
Briha