Can anyone identify this classic engine for me?

[Roduck]

This is a classic outboard that was donated to our local museum and I would like to identify it it does have JAp on it but I can’t find it on the JAP site. I’m hoping someone out there might be able to recognise it. Thanks

 

[chevymaher]

Danger Marine found one and restored it.

 

[Roduck]

Thanks