More blades!!

[Puzzled]

Hi

Can anybody tell me what these blades are please? They look the same but are different sizes?? The rusty one measures 57” long (from bracket to bracket) and is 5.5” at the deepest point. The other blade measures 52” long and is 5” at the deepest point. Thank you.

 

[Cowmansam]

Look like two man cross cut saws for big logs would have a handle in each end

 

[Lincs Lass]

Before chainsaws were invented

 

[Bobthebuilder]

Deffo cross cut saws minus their handles

 

[Netherfield]

All the old shacks in the wild west needed one of those.

I've got one in my shed, don't have anyone for the other end though, Mrs N declines to participate.