The deep and sharp notches were made with a saw and not forged to imitate the upper part "ricasso" of a rapier, but normaly this part is thiner than the blade like a tang... It is the reason why this blade is very suspicious...
THE reference
http://www.vikingsword.com/vb/showth...ghlight=angola
http://www.vikingsword.com/vb/showth...ht=kongo+sword
http://www.vikingsword.com/vb/showthread.php?t=23464
http://www.vikingsword.com/vb/showth...ghlight=angola