What year is this Five Cents - Malaysia Japanese occupation [Risolto]

What year is this Five Cents from Japanese Occupied Malaysia? And what one is it?

ND (1942) and there is only one Malayan 5 cent note.

Which one of these is it? 

P# M2a

The P# M2b has three letters arranged like a fraction.

It would look something like this (from a different denomination note):

Thank you