Meaning in a Balinese keris

[Gustav]

It was donated to the Tropenmuseum in 1952.

There is a Balinese Keris with the same type of Gonjo depicted on Jasper&Mas Pirngadie, Vol. V, p. 229, Fig. 323. The Volume was published in 1930, but the materials for it were collected already before 1920.

We encounter the idea of such Gonjo also on a Javanese Pedang with Gonjo, which is certainly antique and a heirloom.