What are these 'running boards' for?

[oldrelics]

SOLID thick cast aluminum. Ford script. I tried to find out years ago with no luck.

 

[Layden B]

Someone's reproductions in 1915-23 style.

 

[d.]

I have a buddy in CA that has a pair of stainless steel Model A running boards, probably some 60's-70's repros.

 

[Dodge]

Their for my car, do you want my address....