Bali Keris for classification

[drdavid]

According to Karsten's krisdisk

If the neck of the Naga is equipped with wings, which is rarely seen, it is called Dapor Lar Munda (Lar= wing and Munda=snake)

Could that be what we are seeing here or am I being a bit thick. It is not clear in the krisdisk as to which geographical keris region this name applies
cheers
DrD