I do understand what Henk is trying to say. Sometimes i think that holland have more keris than wooden shoes.
Most of them are lower quality wood. Type of woord is light. Some times well cut some times not well cut. Some times harder wood, lesser cut quality. And very sometimes hard wood good/beter cut quality.
It not all time thes types of scabard were made only for Knil Soldiers that went back to holland. I have seen photo's of Maduran soldiers in KNIL army. Wearing those types of keris. I find manny of those keris having realy old baldes inside of them. Some of them bought by Indoneisans from Javaneese the give them sheath "upgrade" to be sold to dutch, for higher price. Iff there is realation between Islaam and getting rid of their old kerisses, i dont know.