Small Indonesian ? knife

[colin henshaw]

Hi

I bought this small knife as I was impressed by the quality of manufacture, although South East Asia is not really my area. I believe these to be called bade bade from Indonesia ? (or Malayasia).

Could someone kindly help with identification, age, origin etc. Also were they for use as a weapon or mainly as an article of dress ? Length in sheath approx. 30cm.

Thanks in advance.