Wallet card with some very old streetlamp remnants

Across the street from the ~200-year-old mile marker in Inwood, Manhattan, is a remnant of a 150-year-old gaslamp. These streetlamps were installed in the 1860s and most were replaced beginning in 1913. This one on 211th street was converted to a street sign for many decades after, which is why it has survived the test of time.

While that lamp is no longer functional, this lamp on Wooster Street in Soho is; it is believed to be the last remaining wall-mounted public street lamp in Manhattan, probably dating back to the 1930s.