Wallet Card at a Fletcher's Castoria sign

Charles Fletcher's Castoria was a prune-flavored laxative for children that was one of the most heavily advertised products of the late nineteenth and early twentieth centuries. Fletcher's Castoria ads were painted on hundreds of buildings in that era, largely in the New York area. In 1883, when the Brooklyn Bridge was opened, Fletcher's made sure there ads were prominent in many spots near the bridge. Until fairly recently old Fletcher's Castoria signs were still fairly prominent in the city, but most have disappeared within the last 20 years. Here is one that still survives, at the corner of Spring Street and Cleveland Place in Manhattan.

The "Castoria" part is gone but "Chas Fletcher" lives on over a century later.