What's this part called? Chrome piece..

Hey Guys,

Wondering if you guys know what the chrome piece is called on a '73 Plymouth Scamp. Located at the bottom when door is open.. I was trying to salvage mine since its dented and rusty, but wondering if there is any place you guys have had luck? I've been searchin the junkyards, online, ebay, craigslist, but using ridiculous key words haha](*,)

please see pic for reference..