Does this stamp tell me anything about this kart?

[spookyfishlizard]

Does this stamp I uncovered while stripping off paint today tell me anything about this kart?

 

[anderkart]

Does it read: NAT 0 ?

 

[spookyfishlizard]

HAHA No, it's NAT ON. I'm thinking there is an I in that space that I can't see.

 

[anderkart]

I'm not sure what brand it is. I'd post a new thread asking with all your pics here:
http://www.vintagekarts.com/forum/view_forum.php?id=2
Those guys will know.