Technical What is it interesting find aluminum header midget motor offenhauser what did I get treasure wallart

I found this cool stuff at the Jefferson swap and you never know what you find.
So what are they and no cross referencing on the numbers . They looks to be aluminum or magnesium and have 6 inches between the ports. Is this a header or water outlet for something. You can see some corrosion on the inside so alcohol may have done this ?
Thank you View attachment 5384856 View attachment 5384857 View attachment 5384858

 

Upper coolant manifold on a 110 Offy?

 

Interesting and thanks for the reply @jaracer and I can’t find any pictures of a similar item on a offi motor

 

They definitely look to be water manifolds, though I don't think they're Offy, or Miller, or any of the other 'common' DOHC racing heads/engines, ie HAL, Dreyer, Gallivan, Frontenac, etc.
Maybe off a production car of the teens or twenties?

 

Look at 1914 Overland for the shiny one.

 

Here's a 1916 Willys Overland.