David,
I understand your confusion. In the old days this kind of keris would be called "keris sajen" or "keris majapahit", but I reckon recently a new terminology arise and call it as "puthut sajen" or "puthut" in sort, due to it's figural, one piece handle. Another term is "puthut cundrik" to call this kind of keris with dhapur cundrik (a kind of pedhang suduk shape). Sometimes it's confused with sombro.
An 'old school boy' like you may get "lost in terminology" nowdays in Java keris world
regards,
Boedhi Adhitya