Thanks for starting this off with a couple of examples from this collection.
I am not sure what the over all interest will be, but i do know that there are a few members like myself and Alan Maisey who have a great interest in these, though admittedly i cannot say that i have much great knowledge on them beyond reading Theo's book and intermittent discussions on this forum.
I cannot tell for sure, but does that first example also display picit elements (finger impressions along the blade)?
You might want you look though our archives on discussions we have previously had on keris sajen. Here is one link, but you will find others, both under "keris sajen" and the misnomered tag "keris majapahit".
http://www.vikingsword.com/vb/showth...ighlight=putut