It seems old to me. If I am not mistaken, your keris is dapur tilam upih, pamor beras wutah. It could be Mataram but more likely Padjajaran if looking at the gandik and ganja (small and a bit rounded). Warangka made of Kayu Timoho with Gayaman Solo style. Handle made of Kayu Timoho. Your mendak and Handle could be from Eastern part of Java.
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