I recently recieved a knife for helping sell off an estate. Blade is not marked with maker but does have "broken heart" on one side with letters "KBA" with KB on top and A underneath, and what appears to be a tiger on the other side. All appear stamped. knife is full tang, tanto blade (chrome), handle looks like macarta with brass fittings & large rivits. 10 & 3/4 inches long. Appreciate any information you may have...