Cute! An internet search for "Stuart Weitzman butterfly sneakers" turned up several pairs currently or recently sold on sites like Poshmark, eBay, Pinterest, and theRealReal. It looks like the model may have been called "Papillon". I came across a couple pairs of Weitzman mules in the same print as well.
Given the relative availability on designer resale sites, I'm inclined to think they are modern, like within the last 5 years.