I never saw any similar piece myself, but let us wait what Alan has to say about it. It should be noted that the 2 blades are very different.
This imaginative style of carving looks more likely to be Madurese than Northern Javanese to me and the hilt is an indication but I could be wrong
I attach the picture of a typical specimen of traditional Ganesha hilt atributed to Cirebon for comparison.
Regards