This old straight keris estimated the dapur Kebo Lajer or also called Mahesa Lajer. The keris with the dapur Kebo Lajer/Mahesa Lajer has the meaning and hope that the owner of this keris can have the spirit of a buffalo who works tirelessly to support his family. The tuah of keris Kebo Lajer is believed to be able to ward off disease outbreaks. Because of this belief, many farmers and breeders owned the keris in the past because they believed that the Kebo Lajer keris could ward off attacks from plant pests and disease outbreaks that could affect livestock.  Apart from this, it is also believed that the keris Kebo Lajer can improve the livelihood of farmers, fertilize crops so that the harvest is abundant, and also prevent disease outbreaks in farm animals so that they can reproduce well without being affected by disease outbreaks can cause death in livestock. I suppose the tangguh is old Mataram (1582-1749). The pamor is Ngulit Semongko. The main magical strength of pamor Kulit Semangka is making more flexible the ambulatory with people from all kinds. Moreover magical strength contributes to the fact that one comes on a simple manner to the costs. This dapur has a simple but long gandik. The ganja is mbatok mengkureb.

The warangka is sandang walikat style and made of medium brown wood. The handle is made of medium brown wood.