Antique 18th Century Indonesian Malay Islamic Sword Dagger Panjang Kris Keris

Excellent quality antique Indonesian Malay from the 15th-18th century, an exquisite Islamic sword-dagger Panjang Kris-Keris from the colonial period belonging to Malayan aristocrats.
The blade is older than the mounting (from 15th–17th Century AD), sturdy, double-edged, straight blade is finely hand-forged with a beautiful and rare Damascus steel pattern - Pamor Ron Pakis (Pattern Feather Fern).
Mounted in the 18th-century fittings, the brown horn hilt (Hulu) is finely hand-carved with two mascarons in a characteristic 17th-18th century European Dutch-style amongst floral garlands.
The wooden scabbard is encased with Eastern silver Pendok finely repousse and engraved with an interlocking floral pattern.
The wrangka in the shape of an Islamic crescent is made of precious wood with naturally occurring contrasting grains.
Keris Panjang is also known as keris penyalang a.k.a "executioner keris," since keris Panjang was usually held by Malay aristocrats with execution authority.
Since the high-quality Keris blades made of Pamor were valuable and would not go out of fashion or style, they were passed down from father to son and used by generations to come. 
So, fine old blades, dating back to the fifteenth century, were still used during the 19th century but remounted with new 19th-century mounting. It was also practiced in Japan, when expensive old sword blades were remounted on a new mount and still used in the 19th and 20th centuries.

CONDITION: Showing the age and usage. The lower part of the silver Pendok is slightly damaged.
Please notice that the pictures in the listing are part of the description of the object's condition.
MEASUREMENTS:
Overall length with the scabbard: 48 cm (18.9 inches)
Overall length without the scabbard: 44.3 cm (17.44 inches)
REFERENCES:
1. "The Invincible Krises 2" by Vanna Ghiringhelli.
2. "Kris Gli Invincibili: Kris The Invincible" (The invincible krises) by Vanna Ghiringhelli.
3. "Traditional Weapons of the Indonesian Archipelago" by Albert G. van Zonneveld.