we can see in "malayworld edged weapons"the following description which applies to this example :" The Rencong is a dagger as important to the Acehnese as the Keris is to the Javanese. According to some scholars, its shape is said to symbolize the Arab lettering of the invocation “Bismillaah”. One can accept this interpretation or not, however the Islamic symbolism is evident in the Rencong shape and decoration. As the Keris, it is believed to have a mystic power.
The Rencong is worn slipped into the folds of the sarong on the left hand side of the stomach directed to the right hand. It is part of the traditional Acehnese clothing and is still worn for ceremonies and weddings.Hilt, Hulu Meucangge, the base is forged with the blade, the remaining is in buffalo horn, both ends are thin, in its center it widens in a right angle curve. Wooden sheath made in two halves and tighten with 2 straps, the mouth long protuberance has been cut, its bottom curves at a 45° angle towards the back of the blade, like an inversed shoe, it decorated with engraved flower designs. All along the sheath is decorated with poker work interlace designs. This type of work is typical to Aceh weapons, it can also be seen on the Sikim Panjang sheath. "39cm height