Small brass shoes with stands, how old are they and what is their purpose?

Hello! These 2D brass shoes (5.25"L x 2.9"W) were picked up at auction recently. They look on the older side, what age could they be? Also, do you think purely decorative or could they have been used in a shoe shop for example? Any and all info appreciated, thank you!

 

store display.....?

 

They almost look like a printing plate. Those legs are rather crude when the shoes arent . Fun pieces.

 

After a bit of digging, I found some listings of similar (but not quite the same!) that say they are trench art from WW1, often seen on fireplaces during and after the war. I do have a few other pieces of trench art and perhaps these are from shells?

 

https://www.ajantiques.co.uk/19th-Century-Brass-Mantle-Boots-.htm

https://www.google.com/search?q=Vic...XCEBwUQjJkEegQIHhAC&biw=1478&bih=704&dpr=1.25

 

Great links, thank you!