This is a fabulous, authentic, 940 sterling silver, unusual carving knife signed by Hector Aguilar. 
The entire knife measures 15.50" and the blade is 10 5/8".
I am guessing the curved blade is made of carbon steel and it is signed Taxco, made in Mexico, & with the HA hallmark of Aguilar.
The handle is made of 940 silver (slightly higher grade of sterling which is 925) & has a wooden panel as pictured. 
I believe the pattern is called Aztec & has great detailing.
The handle is marked with the hallmark, 940, Taxco and the eagle mark as pictured. 
This fine & rare knife is in perfect condition, guaranteed to be authentic & as described. 

Please note that payment is required within 2 days of purchase. I ship USPS, ground advantage or priority unless otherwise specified.