Mr Flux, I don't think you have a definite id without finding a labelled match
But if we're having a guess at it, I would go with Empoli as Wayne says, rather than Japanese.
The shape looks right, the bobbles look right and the colour and depth of colour also. But it would be nice to find a matching shape or labelled version with some of the bobbles surrounded.
How much does it weigh please?
Can we have a good interior shot and also a base shot for future reference also please?