Retro Showtime 1950s Sign Design. Neon Lamps billboard on dark background. American casino advertisement, vector illustration. Cinema and theater Signage Light Bulbs Frame for Sale flyers Shutterstock .eps vector - Retro Showtime 1950s Sign Design. Neon Lamps billboard on dark background. American casino advertisement, vector illustration. Cinema and theater Signage Light Bulbs Frame for Sale flyers - ID: 603903959