DESIGN:
Funtional and sturdy, this design of three (occasionally 4) rings of hexagons was widely used in the early and mid 20th century, generally for sewer covers.
UTILITY:
Prevents people from falling into holes in the ground.
RANGE:
The honeycomb pattern is found in throughout Manhattan, Brooklyn, the Bronx and Staten Island, with just a few erratics popping up in Queens. This example, from Park Ave near 53rd St., is the only one I have found with the Page's Foundry inscription.