This torn, faded anti-littering poster is still adhered to a beam between the F and G tracks at the Seventh Avenue station in Park Slope.
“Litter Is a Hazard Here” it reads, an arrow pointing to the tracks. Apparently, riders decades ago were just as likely to toss trash on the tracks as riders are today.
The sign is part of a series of “Subway Sun” messages first launched by the IRT in the teens, according to this Princeton University Library blog, which also provides a little backstory and images of other Subway Sun posters.
So how old is the Park Slope sign? I’m guessing it dates to the 1940s, and it just might be older than these vintage signs found in another Brooklyn F station that warn riders not to spit or lean over toward the tracks.