This is an improvement over Sapara and it is made of bronze. For adventurers who prefer the curved middle-eastern style, this is their choice of sword.
Confirmed, the merchant's name is Sughandi. With max fame, the Scimitar costs just over 4k. Bastok was in second place in conquest at the time of purchase.
I'm guessing this item isn't common in the AH because it's just not worth it to craft.
Also, I've just combed through every merchant in the Bastok Markets district and not a single one of them sells this. (not available, not just out of stock)