[A. G. Maisey]

The SKA pakem cengkrong lacks kruwingan, whilst the SKA pakem dhuwung does have kruwingan, also a cengkrong does not need to have the back edge sharp, whereas the dhuwung does.

The subject keris has a sharp back edge and kruwingan.

Using the SKA pakem it cannot be anything other than dhuwung luk lima, but I have no idea at all what it might have been called at the time & in the place where it was made.

I do not think this is a Central Javanese keris, more likely East Jawa, and over there it could have a half dozen other names.

Actually, if we did allow that it was a cengkrong with 5 luk, in spite of the fact that it does not quite satisfy the requirements for a cengkrong, it would then be a Pandowo Cengkrong, not a Cengkrong Luk Lima.