Retro Diner Kitsch Kitchen Wall Art. "This fun, vintage inspired metal wall sign is perfect for your retro-themed kitchen! Made of embossed metal (tin), it is printed with colorful artwork made to look like a vintage Fifties Diner sign."
In a hair salon from the 1960s...a little before my time but I do remember these from the 70's.
6 Retro Neon Styles
6 Retro Neon Styles for Illustrator. Download here: https://graphicriver.net/item/6-retro-neon-styles/17313857?ref=ksioks