Technical OLD CYLINDER HEAD ID HELP

Does anyone recognize this part number on this a cylinder head? Thanks

 

Can we see the whole head?

 

That's the only other photo I have. I can take more this evening. Thanks

 

The bolt pattern is American Austin/Austin Bantam. There are a couple of variations, mostly cooling, so I don't know what year this head is.

 

Wow! Wasn't expecting that. Thanks

 

Yes , I do recognize the letters and numbers . I am very astute like that.

 

Cool piece. !!

 

Lost me..edit: found me!

 

Yeah definitely a cool piece. You never know what you'll find. Thanks for the replies

 

Found this online. Looks right.
Article said; 1940 American Bantam engine and transmission from The Museum of Automobiles' collection in Arkansas