Thank you all, for your teachings.
No David, there is no sheath

.
The blade is 8 inches ( 21 cms. ) long. The mendak (correct ?) is in copper.
I am not at home at the moment ( in Lisbon visiting my daughter ... and arms shopping

).
When i get back, i will adventure to dismount the hilt and take pictures of the pesi.
Could you meanwhile tell what region this keris come from ?
Thanks a lot.
Fernando