New Keris Identification

[Nightfury223]

Hi! I'm new to this forum and I was hoping to be able to have a Keris identified. I was able to get my hands on this at a nonprofit thrift store for a seriously mismarked price and I am wondering if it is authentic. If so, I would also like to know how old it might be, though I understand if that is not possible. I don't know too much about Keris blades but any information you can gather would be great, thank you in advance!