Any ideas?

[elidas]

These belong to a friend. My guess is part of a shoe stretcher but I really don't know. The two pins on the movable part have wear patterns toward the handle.

 

[rustedgoat]

Would have to guess its similar to this, just need the wood forms.
Did a search for "antique cast iron shoe stretcher" images

 

[RTM]

Yup, busted shoe trees.

 

[elidas]

Thanks!