Very interesting article below.
Saucy ‘Escort Cards’ Were a Way to Flirt in the Victorian Era19th-century Americans used cheeky cards to stretch social convention and find romance.
By Becky Little, National Geographic
PUBLISHED January 04, 2016
Say you’re a high society lady in the Victorian-era United States. And say a charming bachelor catches your eye across the dance floor and wants to get to know you. He could a.) find someone of good standing to introduce you to him, b.) risk his reputation and the wrath of your chaperone by daring to speak to you himself, or c.) clandestinely slip you a small card printed with a picture or a joke asking if he could walk you home.