Bronze keris ?

[satsujinken]

in line with pusaka's post here's a bronze keris offered to me by local seller here in Indonesia

Dhapur sinom, with quite nice crisp lines, making me assume the blade is kamardikan era, but the owner said it was Mataram era, and quite old

he said this blade once has certificate from Museum Keris from Taman Mini Indonesia Indah, but now lost

for now I did not have the budget to buy it, so I posted it here for discussion

any opinion is welcome. Enjoy

thanks

Donny