I THINK OF THE LONG NIMCHA AS SWORDS TO BE USED ON HORSEBACK PRIMARILY BUT OF COURSE THEY CAN BE USED ON FOOT OR ON SHIPS AS WELL. ALL EXAMPLES PICTURED ABOVE FIT THE HORSEMAN'S SWORD TYPE
EXCEPT THE LAST PICTURE. IT IS WHAT IS REFERRED TO AS A WEDDING NIMCHA AND IS LARGELY USED AT MARRIAGE CEREMONIES TODAY AND IS DAGGER TO SHORT SWORD IN SIZE. ALL THE ONES I HAVE SEEN HAVE BEEN FAIRLY RECENT SAY WW1 TO PRESENT BUT OLDER FORMS MAY HAVE BEEN WEAPONS

MOST I HAVE SEEN WERE ATTRIBUTED TO ALGERIA BUT LIKELY TO BE FOUND IN SURROUNDING COUNTRIES.