Finn's Point Rear Range Light, built in 1876–1877 on Finns Point in Pennsville Township, New Jersey, was part of a paired system that guided vessels as a rear range light. About 100 feet tall, it is notable for its unusual wrought-iron construction, with a cast-iron spiral staircase enclosed inside a wrought-iron cylinder. Valued for resisting corrosion and cracking, this design survives as the only known example of its type in New Jersey. The light was removed from service around 1950, and its lenses were taken out. In 1978, it was listed on the National Register of Historic Places for its engineering significance.