THE BLADE ON YOUR SECOND ONE IS UNUSUAL, THE HANDLE APPEARS TO BE THE SAME TRADITIONAL FORM AS THE ONE ABOVE BUT CARVED BY SOMEONE WHO WAS NOT A EXCELLENT WOOD CARVER. I AM NOT SURE WHAT THIS TRADITIONAL FORM REPRESENTS BUT TO ME IT LOOKS LIKE IT IS DERIVED FROM A FLOWER AND INCORPORATES THE NUMBER 3 AS IN 3 POINTS ON THE POMMEL. THERE IS BOUND TO BE SOME SIGNIFICENCE IN THE 3 POINTS PERHAPS SOMEONE ELSE WILL BE ABLE TO ENLIGHTEN US FURTHER. HERE ARE TWO MORE PICTURES ONE IS A VARIATION ON THE 3 PART TRADITIONAL THE OTHER IS THE OTHER MOST COMMON TRADITIONAL FORM WHICH MAY REPRESENT A HEAD AS YOUR FIRST EXAMPLE DOES. IT MAY ALSO JUST BE A GOOD WORKING DESIGN FOR THE HANDLE WHEN USING THE KNIFE FOR CHOPPING AS IT WOULD HELP KEEP THE KNIFE FROM SLIPPING FROM THE HAND. I HAVE NOT READ THIS IN A BOOK SO IT IS ONLY MY OPINION.