[Bjorn]

I'm curious whether there are any areas in Nusa Tenggara where keris form a part of the local culture. The use of keris on Lombok is well known, and I found some mentions of (Bugis-style) keris being used on Sumbawa. But is Sumbawa the easternmost area of the lesser Sundas where keris are used? Did keris ever form a part of the local culture on other islands of Nusa Tenggara?

PS: Nusa Tenggara's largest islands are Lombok, Sumbawa, Sumba, Komodo, Flores, and Timor.